151
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Hamid Z, Armirotti A. Traveling Wave Ion Mobility-Mass Spectrometry to Enhance the Detection of Low Abundance Features in Untargeted Lipidomics. Methods Mol Biol 2020; 2084:103-117. [PMID: 31729656 DOI: 10.1007/978-1-0716-0030-6_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Ion mobility has become a valuable tool in mass spectrometry-based lipidomics workflows, thanks to its ability to separate ions in the gas phase based on their size and conformation. Over the last years, it was demonstrated that the comparative analysis of ion mobility data has the potential to highlight the presence of low abundance species in untargeted lipidomics. The present chapter illustrates the background of the topic and guides the reader from the sample preparation to the data analysis of an untargeted lipidomics experiment performed using ion mobility.
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Affiliation(s)
- Zeeshan Hamid
- D3Validation, Fondazione Istituto Italiano di Tecnologia, Genoa, Italy
- Scuola Superiore Sant'Anna, Pisa, Italy
| | - Andrea Armirotti
- Analytical Chemistry and In-Vivo Pharmacology, Fondazione Istituto Italiano di Tecnologia, Genoa, Italy.
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152
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Morris CB, Poland JC, May JC, McLean JA. Fundamentals of Ion Mobility-Mass Spectrometry for the Analysis of Biomolecules. Methods Mol Biol 2020; 2084:1-31. [PMID: 31729651 DOI: 10.1007/978-1-0716-0030-6_1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Ion mobility-mass spectrometry (IM-MS) combines complementary size- and mass-selective separations into a single analytical platform. This chapter provides context for both the instrumental arrangements and key application areas that are commonly encountered in bioanalytical settings. New advances in these high-throughput strategies are described with description of complementary informatics tools to effectively utilize these data-intensive measurements. Rapid separations such as these are especially important in systems, synthetic, and chemical biology in which many small molecules are transient and correspond to various biological classes for integrated omics measurements. This chapter highlights the fundamentals of IM-MS and its applications toward biomolecular separations and discusses methods currently being used in the fields of proteomics, lipidomics, and metabolomics.
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Affiliation(s)
- Caleb B Morris
- Department of Chemistry, Center for Innovative Technology, Institute of Chemical Biology, Vanderbilt University, Nashville, TN, USA.,Vanderbilt-Ingram Cancer Center, Institute for Integrative Biosystems Research and Education, Vanderbilt University, Nashville, TN, USA
| | - James C Poland
- Department of Chemistry, Center for Innovative Technology, Institute of Chemical Biology, Vanderbilt University, Nashville, TN, USA.,Vanderbilt-Ingram Cancer Center, Institute for Integrative Biosystems Research and Education, Vanderbilt University, Nashville, TN, USA
| | - Jody C May
- Department of Chemistry, Center for Innovative Technology, Institute of Chemical Biology, Vanderbilt University, Nashville, TN, USA.,Vanderbilt-Ingram Cancer Center, Institute for Integrative Biosystems Research and Education, Vanderbilt University, Nashville, TN, USA
| | - John A McLean
- Department of Chemistry, Center for Innovative Technology, Institute of Chemical Biology, Vanderbilt University, Nashville, TN, USA. .,Vanderbilt-Ingram Cancer Center, Institute for Integrative Biosystems Research and Education, Vanderbilt University, Nashville, TN, USA.
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153
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Abstract
This chapter describes the developments in drift-tube ion mobility-mass spectrometry (DTIM-MS) that have driven application development in 'omics analyses. Harnessing the additional, orthogonal separation that DTIM provides increased confidence in compound identifications as the mass spectral complexity can be reduced and mobility-derived parameters (most prominently the collision cross section, CCS) used to support identity confirmation goals for a variety of 'omics application areas. Presented within this contribution is a methodology for improving the transmission and maintaining accurate determination of drift time-derived CCS (DTCCS) for low molecular weight compounds for a typical nontargeted 'omics (metabolomics) workflow using liquid chromatography in combination with DTIM-MS.
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Affiliation(s)
- Tim J Causon
- Institute of Analytical Chemistry, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria.
| | | | - Stephan Hann
- Institute of Analytical Chemistry, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
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154
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Odenkirk MT, Baker ES. Utilizing Drift Tube Ion Mobility Spectrometry for the Evaluation of Metabolites and Xenobiotics. Methods Mol Biol 2020; 2084:35-54. [PMID: 31729652 DOI: 10.1007/978-1-0716-0030-6_2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Metabolites and xenobiotics are small molecules with a molecular weight that often falls below 600 Da. Over the last few decades, multiple small molecule databases have been curated listing structures, masses, and fragmentation spectra possible in metabolomic and exposomic measurements. To date only a small portion of the spectra in these databases are experimentally derived due to the high expense of obtaining, synthesizing, and analyzing standards. A vast majority of spectra have thus been created using theoretical programs to fit the available experimental data. The errors associated with theoretical data have however caused problems with current small molecule identifications, and accurate quantitation as searching the databases using just one or two analysis dimensions (i.e., chromatography retention times and mass spectrometry (MS) m/z values) results in numerous annotations for each experimental feature. Additional analysis dimensions are therefore needed to better annotate and identify small molecules. Drift tube ion mobility spectrometry coupled with MS (DTIMS-MS) is a promising technique to address this challenge as it is able to perform rapid structural evaluations of small molecules in complex matrices by assessing the collision cross section values for each in addition to their m/z values. The use of IMS in conjunction with other separation techniques such as gas or liquid chromatography and MS has therefore enabled more accurate identifications for the small molecules present in complex biological and environmental samples. Here, we present a review of relevant parameter considerations for DTIMS application with emphasis on xenobiotics and metabolomics isomer separations.
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Affiliation(s)
- Melanie T Odenkirk
- Department of Chemistry, North Carolina State University, Raleigh, NC, USA
| | - Erin S Baker
- Department of Chemistry, North Carolina State University, Raleigh, NC, USA.
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155
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Langridge JI, Claude E. Matrix-Assisted Laser Desorption and Desorption Electrospray Ionization Mass Spectrometry Coupled to Ion Mobility. Methods Mol Biol 2020; 2084:245-265. [PMID: 31729666 DOI: 10.1007/978-1-0716-0030-6_16] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Matrix-Assisted Laser Desorption Ionization (MALDI) and Desorption Electrospray Ionization (DESI) are two complementary ionization techniques that have transformed the field of biomolecular analysis, enabling the measurement of a wide range of biomolecules by mass spectrometry. These techniques have also been applied to imaging mass spectrometry where the spatial localization of molecules is determined. Coupling this with Ion Mobility Spectrometry (IM) allows an additional level of separation and specificity to be obtained. Here, we describe the coupling of the technologies and the practical advantages of these combinations, highlighting specific examples.
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156
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Arevalo R, Ni Z, Danell RM. Mass spectrometry and planetary exploration: A brief review and future projection. JOURNAL OF MASS SPECTROMETRY : JMS 2020; 55:e4454. [PMID: 31663201 PMCID: PMC7050511 DOI: 10.1002/jms.4454] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 09/25/2019] [Accepted: 10/04/2019] [Indexed: 05/11/2023]
Abstract
Since the inception of mass spectrometry more than a century ago, the field has matured as analytical capabilities have progressed, instrument configurations multiplied, and applications proliferated. Modern systems are able to characterize volatile and nonvolatile sample materials, quantitatively measure abundances of molecular and elemental species with low limits of detection, and determine isotopic compositions with high degrees of precision and accuracy. Consequently, mass spectrometers have a rich history and promising future in planetary exploration. Here, we provide a short review on the development of mass analyzers and supporting subsystems (eg, ionization sources and detector assemblies) that have significant heritage in spaceflight applications, and we introduce a selection of emerging technologies that may enable new and/or augmented mission concepts in the coming decades.
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Affiliation(s)
- Ricardo Arevalo
- Department of GeologyUniversity of MarylandCollege ParkMaryland
| | - Ziqin Ni
- Department of GeologyUniversity of MarylandCollege ParkMaryland
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157
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Chen X, Zhou Z, Zhu ZJ. The Use of LipidIMMS Analyzer for Lipid Identification in Ion Mobility-Mass Spectrometry-Based Untargeted Lipidomics. Methods Mol Biol 2020; 2084:269-282. [PMID: 31729667 DOI: 10.1007/978-1-0716-0030-6_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Untargeted lipidomics aims to comprehensively measure and characterize all lipid species in biological systems. Ion mobility-mass spectrometry (IM-MS) has showed a great potential for untargeted lipidomic analysis. Coupling with liquid chromatography and data-independent tandem MS techniques, acquired IM-MS data set contains four-dimensional information for lipid identification, including m/z of MS1 ion, retention time (RT), collision cross section (CCS), and MS/MS spectra. In this protocol, we introduced a data processing workflow using an integrative web server, namely, LipidIMMS Analyzer, to support accurate lipid identification. The protocol demonstrated the integration of all four dimensional information to achieve unambiguous identifications of lipids in complex biological samples.
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Affiliation(s)
- Xi Chen
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zhiwei Zhou
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zheng-Jiang Zhu
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China.
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158
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Claes BSR, Takeo E, Fukusaki E, Shimma S, Heeren RMA. Imaging Isomers on a Biological Surface: A Review. Mass Spectrom (Tokyo) 2019; 8:A0078. [PMID: 32158629 PMCID: PMC7035452 DOI: 10.5702/massspectrometry.a0078] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 10/31/2019] [Indexed: 12/30/2022] Open
Abstract
Mass spectrometry imaging is an imaging technology that allows the localization and identification of molecules on (biological) sample surfaces. Obtaining the localization of a compound in tissue is of great value in biological research. Yet, the identification of compounds remains a challenge. Mass spectrometry alone, even with high-mass resolution, cannot always distinguish between the subtle structural differences of isomeric compounds. This review discusses recent advances in mass spectrometry imaging of lipids, steroid hormones, amino acids and proteins that allow imaging with isomeric resolution. These improvements in detailed identification can give new insights into the local biological activity of isomers.
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Affiliation(s)
- Britt S. R. Claes
- Maastricht MultiModal Molecular Imaging (M4I) Institute, Division of Imaging Mass Spectrometry (IMS), Maastricht University
| | - Emi Takeo
- Department of Biotechnology, Graduate School of Engineering, Osaka University
| | - Eiichiro Fukusaki
- Department of Biotechnology, Graduate School of Engineering, Osaka University
| | - Shuichi Shimma
- Department of Biotechnology, Graduate School of Engineering, Osaka University
| | - Ron M. A. Heeren
- Maastricht MultiModal Molecular Imaging (M4I) Institute, Division of Imaging Mass Spectrometry (IMS), Maastricht University
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159
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Schroeder M, Meyer SW, Heyman HM, Barsch A, Sumner LW. Generation of a Collision Cross Section Library for Multi-Dimensional Plant Metabolomics Using UHPLC-Trapped Ion Mobility-MS/MS. Metabolites 2019; 10:metabo10010013. [PMID: 31878231 PMCID: PMC7023306 DOI: 10.3390/metabo10010013] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 12/09/2019] [Accepted: 12/13/2019] [Indexed: 11/16/2022] Open
Abstract
The utility of metabolomics is well documented; however, its full scientific promise has not yet been realized due to multiple technical challenges. These grand challenges include accurate chemical identification of all observable metabolites and the limiting depth-of-coverage of current metabolomics methods. Here, we report a combinatorial solution to aid in both grand challenges using UHPLC-trapped ion mobility spectrometry coupled to tandem mass spectrometry (UHPLC-TIMS-TOF-MS). TIMS offers additional depth-of-coverage through increased peak capacities realized with the multi-dimensional UHPLC-TIMS separations. Metabolite identification confidence is simultaneously enhanced by incorporating orthogonal collision cross section (CCS) data matching. To facilitate metabolite identifications, we created a CCS library of 146 plant natural products. This library was generated using TIMS with N2 drift gas to record the TIMSCCSN2 of plant natural products with a high degree of reproducibility; i.e., average RSD = 0.10%. The robustness of TIMSCCSN2 data matching was tested using authentic standards spiked into complex plant extracts, and the precision of CCS measurements were determined to be independent of matrix affects. The utility of the UHPLC-TIMS-TOF-MS/MS in metabolomics was then demonstrated using extracts from the model legume Medicago truncatula and metabolites were confidently identified based on retention time, accurate mass, molecular formula, and CCS.
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Affiliation(s)
- Mark Schroeder
- Department of Biochemistry, Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA;
| | - Sven W. Meyer
- Solutions Development, Bruker Daltonics, 28359 Bremen, Germany; (S.W.M.); (H.M.H.); (A.B.)
| | - Heino M. Heyman
- Solutions Development, Bruker Daltonics, 28359 Bremen, Germany; (S.W.M.); (H.M.H.); (A.B.)
| | - Aiko Barsch
- Solutions Development, Bruker Daltonics, 28359 Bremen, Germany; (S.W.M.); (H.M.H.); (A.B.)
| | - Lloyd W. Sumner
- Department of Biochemistry, Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA;
- Correspondence: ; Tel.: +1-573-882-5486
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160
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Michalik-Onichimowska A, Beitz T, Panne U, Löhmannsröben HG, Riedel J. Laser ionization ion mobility spectrometric interrogation of acoustically levitated droplets. Anal Bioanal Chem 2019; 411:8053-8061. [PMID: 31741006 DOI: 10.1007/s00216-019-02167-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/03/2019] [Accepted: 09/23/2019] [Indexed: 11/26/2022]
Abstract
Acoustically levitated droplets have been suggested as compartmentalized, yet wall-less microreactors for high-throughput reaction optimization purposes. The absence of walls is envisioned to simplify up-scaling of the optimized reaction conditions found in the microliter volumes. A consequent pursuance of high-throughput chemistry calls for a fast, robust and sensitive analysis suited for online interrogation. For reaction optimization, targeted analysis with relatively low sensitivity suffices, while a fast, robust and automated sampling is paramount. To follow this approach, in this contribution, a direct coupling of levitated droplets to a homebuilt ion mobility spectrometer (IMS) is presented. The sampling, transfer to the gas phase, as well as the ionization are all performed by a single exposure of the sampling volume to the resonant output of a mid-IR laser. Once formed, the nascent spatially and temporally evolving analyte ion cloud needs to be guided out of the acoustically confined trap into the inlet of the ion mobility spectrometer. Since the IMS is operated at ambient pressure, no fluid dynamic along a pressure gradient can be employed. Instead, the transfer is achieved by the electrostatic potential gradient inside a dual ring electrode ion optics, guiding the analyte ion cloud into the first stage of the IMS linear drift tube accelerator. The design of the appropriate atmospheric pressure ion optics is based on the original vacuum ion optics design of Wiley and McLaren. The obtained experimental results nicely coincide with ion trajectory calculations based on a collisional model. Graphical Abstract.
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Affiliation(s)
- Aleksandra Michalik-Onichimowska
- School of Analytical Sciences Adlershof, Humboldt-Universität zu Berlin, Zum Großen Windkanal 6, 12489, Berlin, Germany
- Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, 12489, Berlin, Germany
- Physical Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany
| | - Toralf Beitz
- Physical Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany
| | - Ulrich Panne
- School of Analytical Sciences Adlershof, Humboldt-Universität zu Berlin, Zum Großen Windkanal 6, 12489, Berlin, Germany
- Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, 12489, Berlin, Germany
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
| | - Hans-Gerd Löhmannsröben
- Physical Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany
| | - Jens Riedel
- School of Analytical Sciences Adlershof, Humboldt-Universität zu Berlin, Zum Großen Windkanal 6, 12489, Berlin, Germany.
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161
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Dodds JN, Baker ES. Ion Mobility Spectrometry: Fundamental Concepts, Instrumentation, Applications, and the Road Ahead. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:2185-2195. [PMID: 31493234 PMCID: PMC6832852 DOI: 10.1007/s13361-019-02288-2] [Citation(s) in RCA: 220] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 07/08/2019] [Accepted: 07/15/2019] [Indexed: 05/07/2023]
Abstract
Ion mobility spectrometry (IMS) is a rapid separation technique that has experienced exponential growth as a field of study. Interfacing IMS with mass spectrometry (IMS-MS) provides additional analytical power as complementary separations from each technique enable multidimensional characterization of detected analytes. IMS separations occur on a millisecond timescale, and therefore can be readily nested into traditional GC and LC/MS workflows. However, the continual development of novel IMS methods has generated some level of confusion regarding the advantages and disadvantages of each. In this critical insight, we aim to clarify some common misconceptions for new users in the community pertaining to the fundamental concepts of the various IMS instrumental platforms (i.e., DTIMS, TWIMS, TIMS, FAIMS, and DMA), while addressing the strengths and shortcomings associated with each. Common IMS-MS applications are also discussed in this review, such as separating isomeric species, performing signal filtering for MS, and incorporating collision cross-section (CCS) values into both targeted and untargeted omics-based workflows as additional ion descriptors for chemical annotation. Although many challenges must be addressed by the IMS community before mobility information is collected in a routine fashion, the future is bright with possibilities.
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Affiliation(s)
- James N Dodds
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695, USA
| | - Erin S Baker
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695, USA.
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162
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Ross DH, Seguin RP, Xu L. Characterization of the Impact of Drug Metabolism on the Gas-Phase Structures of Drugs Using Ion Mobility-Mass Spectrometry. Anal Chem 2019; 91:14498-14507. [PMID: 31613088 DOI: 10.1021/acs.analchem.9b03292] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Conventional strategies for drug metabolite identification employ a combination of liquid chromatography-mass spectrometry (LC-MS), which offers higher throughput but provides limited structural information, and nuclear magnetic resonance spectroscopy, which can achieves the most definitive identification but lacks throughput. Ion mobility-mass spectrometry (IM-MS) is a rapid, two-dimensional analysis that separates ions on the basis of their gas-phase size and shape (reflected by collision cross section, CCS) and their mass-to-charge (m/z) ratios. The rapid nature of IM separation combined with the structural information provided by CCS make IM-MS a promising technique for obtaining more structural information on drug metabolites without sacrificing analytical throughput. Here, we present an in vitro biosynthesis coupled with IM-MS strategy for rapid generation and analysis of drug metabolites. Drug metabolites were generated in vitro using pooled subcellular fractions derived from human liver and analyzed using a rapid flow injection-IM-MS method. We measured CCS values for 19 parent drugs and their 37 metabolites generated in vitro (78 values in total), representing a wide variety of metabolic modifications. Post-IM fragmentation and computational modeling were used to support metabolite identifications and explore the structural characteristics driving behaviors observed in IM separation. Overall, we found the effects of metabolic modifications on the gas-phase structures of the metabolites to be highly dependent upon the structural characteristics of the parent compounds and the specific position of the modification. This in vitro biosynthesis coupled with rapid IM-MS analysis workflow represents a promising platform for rapid and high-confidence identification of drug metabolites, applicable at a large scale.
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Affiliation(s)
- Dylan H Ross
- Department of Medicinal Chemistry , University of Washington , Seattle , Washington 98195 , United States
| | - Ryan P Seguin
- Department of Medicinal Chemistry , University of Washington , Seattle , Washington 98195 , United States
| | - Libin Xu
- Department of Medicinal Chemistry , University of Washington , Seattle , Washington 98195 , United States
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163
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Poland JC, Schrimpe-Rutledge AC, Sherrod SD, Flynn CR, McLean JA. Utilizing Untargeted Ion Mobility-Mass Spectrometry To Profile Changes in the Gut Metabolome Following Biliary Diversion Surgery. Anal Chem 2019; 91:14417-14423. [PMID: 31573190 DOI: 10.1021/acs.analchem.9b02924] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Obesity and obesity-related disorders are a global epidemic affecting over 10% of the world's population. Treatment of these diseases has become increasingly challenging and expensive. The most effective and durable treatment for Class III obesity (body mass index ≥35 kg/m2) is bariatric surgery, namely, Roux-en-Y gastric bypass (RYGB) and vertical sleeve gastrectomy. These procedures are associated with increased circulating bile acids, molecules that not only facilitate intestinal fat absorption but are also potent hormones regulating numerous metabolic pathways. We recently reported on a novel surgical procedure in mice, termed distal gallbladder bile diversion to the ileum (GB-ILdist), that emulates the altered bile flow after RYGB without other manipulations of gastrointestinal anatomy. GB-ILdist improves oral glucose tolerance in mice made obese with high-fat diet. This is accompanied by fat malabsorption and weight loss, which complicates studying the role of elevated circulating bile acids in metabolic control. A less aggressive surgery in which the gallbladder bile is diverted to the proximal ileum, termed GB-ILprox, also improves glucose control but is not accompanied by fat malabsorption. To better understand the differential effects achieved by these bile diversion procedures, an untargeted ultraperformance liquid chromatography-ion mobility-mass spectrometry (UPLC-IM-MS) method was optimized for fecal samples derived from mice that have undergone bile diversion surgery. Utilizing the UPLC-IM-MS method, we were able to identify dysregulation of bile acids, short-chain fatty acids, and cholesterol derivatives that contribute to the differential metabolism resulting from these surgeries.
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Affiliation(s)
- James C Poland
- Center for Innovative Technology, Department of Chemistry, Institute of Chemical Biology, Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Alexandra C Schrimpe-Rutledge
- Center for Innovative Technology, Department of Chemistry, Institute of Chemical Biology, Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Stacy D Sherrod
- Center for Innovative Technology, Department of Chemistry, Institute of Chemical Biology, Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Charles Robb Flynn
- Department of Surgery , Vanderbilt University Medical Center , Nashville , Tennessee 37235 , United States
| | - John A McLean
- Center for Innovative Technology, Department of Chemistry, Institute of Chemical Biology, Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center , Vanderbilt University , Nashville , Tennessee 37235 , United States
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164
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Chen C, Jiang D, Li H. UV photoionization ion mobility spectrometry: Fundamentals and applications. Anal Chim Acta 2019; 1077:1-13. [DOI: 10.1016/j.aca.2019.05.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 04/09/2019] [Accepted: 05/08/2019] [Indexed: 12/15/2022]
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165
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Ropartz D, Fanuel M, Ujma J, Palmer M, Giles K, Rogniaux H. Structure Determination of Large Isomeric Oligosaccharides of Natural Origin through Multipass and Multistage Cyclic Traveling-Wave Ion Mobility Mass Spectrometry. Anal Chem 2019; 91:12030-12037. [PMID: 31449397 DOI: 10.1021/acs.analchem.9b03036] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Carbohydrate isomers with identical atomic composition cannot be distinguished by mass spectrometry. By separating the ions according to their conformation in the gas phase, ion mobility (IM) coupled to mass spectrometry is an attractive approach to overcome this issue and extend the limits of mass spectrometry in structural glycosciences. Recent technological developments have significantly increased the resolving power of ion mobility separators. One such instrument features a cyclic traveling-wave IM separator integrated in a quadrupole/time-of-flight mass spectrometer. This system allows for multipass ion separations and for pre-, intra-, and post-IM fragmentation. In the present study, we utilize this system to explore a complex mixture of oligoporphyrans derived from the enzymatic digestion of the cell wall of the red alga P. umbilicalis. We are able to deduce their complete structure using IM arrival times and the m/z of specific fragments. This approach was successfully applied for sequencing of oligoporphyrans of up to 1500 Da and included the positioning of the methyl ether and sulfate groups. The structures defined in this study by IM-MS/MS agree with those found in the past but use much more time-consuming analytical approaches. This study also revealed some so far undescribed structures, present at very low abundance. In addition, the results made it possible to compare the abundance of the different isomers released by the enzyme and to draw further conclusions on the specificity of β-porphyranase and more particularly on its accommodation tolerance of anhydro-bridges in subsites. Finally, a separation of two isomers with very similar mobility was obtained after 58 passes around the cIM, with an estimated resolving power of 920 for these triply charged species, confirming the structures attributed to these two isomers.
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Affiliation(s)
- David Ropartz
- INRA , UR1268 Biopolymers Interactions Assemblies, La Géraudière B.P. 71627 , F-44316 Nantes , France
| | - Mathieu Fanuel
- INRA , UR1268 Biopolymers Interactions Assemblies, La Géraudière B.P. 71627 , F-44316 Nantes , France
| | - Jakub Ujma
- Waters Corporation , Stamford Avenue, Altrincham Road , Wilmslow SK9 4AX , United Kingdom
| | - Martin Palmer
- Waters Corporation , Stamford Avenue, Altrincham Road , Wilmslow SK9 4AX , United Kingdom
| | - Kevin Giles
- Waters Corporation , Stamford Avenue, Altrincham Road , Wilmslow SK9 4AX , United Kingdom
| | - Hélène Rogniaux
- INRA , UR1268 Biopolymers Interactions Assemblies, La Géraudière B.P. 71627 , F-44316 Nantes , France
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166
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Du H, Yu H, Ma T, Yang F, Jia L, Zhang C, Zhang J, Niu L, Yang J, Zhang Z, Zhang K, Li Z. Analysis of Glycosphingolipid Glycans by Lectin Microarrays. Anal Chem 2019; 91:10663-10671. [PMID: 31353882 DOI: 10.1021/acs.analchem.9b01945] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Glycosphingolipids (GSLs) are ubiquitous glycoconjugates of cell membranes. Identification of unknown GSL-glycan structures is still a major challenge. To address this challenge, we developed a novel strategy for analysis of GSL-glycans from cultured cells based on a lectin microarray that can directly detect and reveal glycopatterns of GSL extracts without the need for glycan release. There were six steps to perform the analysis of GSL-glycans: (i) extraction of GSLs from cell pellets, (ii) quantification of GSL-glycans using orcinol-sulfuric acid reaction, (iii) preparation of lyso-GSLs by using sphingolipid ceramide N-deacylase, (iv) fluorescence labeling of lyso-GSLs, (v) detection by a lectin microarray, (vi) data acquisition and analysis. Simultaneously, a supplementary verification analysis for GSL-glycans was performed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Optimized experimental conditions, which consisted of the blocking buffer, incubation buffer, and appropriate GSL concentration, were investigated by analyzing the glycopatterns of a standard ganglioside (GM1a) via lectin microarray. The analysis of GSL-glycans from human hepatocarcinoma cell lines (MHCC97L, MHCC97H, and HCCLM3) showed that there were 27 lectins (e.g., WFA, MAL-II, and LTL) to give significantly different signals compared with a normal human liver cell line (HL-7702), indicating up- and/or down-regulations of corresponding glycopatterns such as α1-2 fucosylation and α2-3 sialylation, and changes of certain glycostructures such as Galβ1-3GalNAcβ1-4(NeuAcα2-3)Galβ1-4Glc:Cer and GalNAcα1-3(Fucα1-2)Galβ1-3GlcNAcβ1-3Galβ1-4Glc:Cer. The lectin microarray analysis of lyso-GSLs labeled by fluorescence has proven to be credible, which can provide the glycopatterns and detailed linkage information on GSL-glycans.
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Affiliation(s)
- Haoqi Du
- Laboratory for Functional Glycomics, College of Life Sciences , Northwest University , Xi'an , China
| | - Hanjie Yu
- Laboratory for Functional Glycomics, College of Life Sciences , Northwest University , Xi'an , China
| | - Tianran Ma
- Laboratory for Functional Glycomics, College of Life Sciences , Northwest University , Xi'an , China
| | - Fuquan Yang
- Laboratory of Protein and Peptide Pharmaceuticals & Laboratory of Proteomics, Institute of Biophysics , Chinese Academy of Sciences , Beijing , China
| | - Liyuan Jia
- Laboratory for Functional Glycomics, College of Life Sciences , Northwest University , Xi'an , China
| | - Chen Zhang
- Laboratory for Functional Glycomics, College of Life Sciences , Northwest University , Xi'an , China
| | - Jiaxu Zhang
- Laboratory for Functional Glycomics, College of Life Sciences , Northwest University , Xi'an , China
| | - Lili Niu
- Laboratory of Protein and Peptide Pharmaceuticals & Laboratory of Proteomics, Institute of Biophysics , Chinese Academy of Sciences , Beijing , China
| | - Jiajun Yang
- Laboratory for Functional Glycomics, College of Life Sciences , Northwest University , Xi'an , China
| | - Zhiwei Zhang
- Laboratory for Functional Glycomics, College of Life Sciences , Northwest University , Xi'an , China
| | - Kun Zhang
- Laboratory for Functional Glycomics, College of Life Sciences , Northwest University , Xi'an , China
| | - Zheng Li
- Laboratory for Functional Glycomics, College of Life Sciences , Northwest University , Xi'an , China
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167
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Merel S, Regueiro J, Berntssen MH, Hannisdal R, Ørnsrud R, Negreira N. Identification of ethoxyquin and its transformation products in salmon after controlled dietary exposure via fish feed. Food Chem 2019; 289:259-268. [DOI: 10.1016/j.foodchem.2019.03.054] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 03/11/2019] [Accepted: 03/11/2019] [Indexed: 01/08/2023]
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168
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Hernández-Mesa M, Ropartz D, García-Campaña AM, Rogniaux H, Dervilly-Pinel G, Le Bizec B. Ion Mobility Spectrometry in Food Analysis: Principles, Current Applications and Future Trends. Molecules 2019; 24:E2706. [PMID: 31349571 PMCID: PMC6696101 DOI: 10.3390/molecules24152706] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 07/18/2019] [Accepted: 07/22/2019] [Indexed: 12/11/2022] Open
Abstract
In the last decade, ion mobility spectrometry (IMS) has reemerged as an analytical separation technique, especially due to the commercialization of ion mobility mass spectrometers. Its applicability has been extended beyond classical applications such as the determination of chemical warfare agents and nowadays it is widely used for the characterization of biomolecules (e.g., proteins, glycans, lipids, etc.) and, more recently, of small molecules (e.g., metabolites, xenobiotics, etc.). Following this trend, the interest in this technique is growing among researchers from different fields including food science. Several advantages are attributed to IMS when integrated in traditional liquid chromatography (LC) and gas chromatography (GC) mass spectrometry (MS) workflows: (1) it improves method selectivity by providing an additional separation dimension that allows the separation of isobaric and isomeric compounds; (2) it increases method sensitivity by isolating the compounds of interest from background noise; (3) and it provides complementary information to mass spectra and retention time, the so-called collision cross section (CCS), so compounds can be identified with more confidence, either in targeted or non-targeted approaches. In this context, the number of applications focused on food analysis has increased exponentially in the last few years. This review provides an overview of the current status of IMS technology and its applicability in different areas of food analysis (i.e., food composition, process control, authentication, adulteration and safety).
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Affiliation(s)
- Maykel Hernández-Mesa
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Campus Fuentenueva s/n, E-18071 Granada, Spain.
- INRA, UR1268 Biopolymers Interactions Assemblies, F-44316 Nantes, France.
- Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Oniris, INRA UMR 1329, Route de Gachet-CS 50707, F-44307 Nantes CEDEX 3, France.
| | - David Ropartz
- INRA, UR1268 Biopolymers Interactions Assemblies, F-44316 Nantes, France
| | - Ana M García-Campaña
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Campus Fuentenueva s/n, E-18071 Granada, Spain
| | - Hélène Rogniaux
- INRA, UR1268 Biopolymers Interactions Assemblies, F-44316 Nantes, France
| | - Gaud Dervilly-Pinel
- Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Oniris, INRA UMR 1329, Route de Gachet-CS 50707, F-44307 Nantes CEDEX 3, France
| | - Bruno Le Bizec
- Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), Oniris, INRA UMR 1329, Route de Gachet-CS 50707, F-44307 Nantes CEDEX 3, France
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169
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Abstract
This review covers the applications of mass spectrometry (MS) and its hyphenated techniques to characterize polyurethane (PU) synthetic polymers and their respective hard and soft segments. PUs are commonly composed of hard segments including methylene bisphenyl diisocyanate (MDI) and toluene diisocyanate (TDI), and soft segments including polyester and polyether polyols. This literature review highlights MS techniques such as electrospray ionization (ESI), matrix assisted laser/desorption ionization (MALDI), ion mobility-mass spectrometry (IM-MS), and computational methods that have been used for the characterization of this polymer system. Here we review specific case studies where MS techniques have elucidated unique features pertaining to the makeup and structural integrity of complex PU materials and PU precursors.
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Affiliation(s)
- Tiffany M Crescentini
- Department of Chemistry, Vanderbilt University, Nashville, TN 37240, USA.,Center for Innovative Technology, Vanderbilt University, Nashville, TN 37240, USA.,Institute of Chemical Biology, Vanderbilt University, Nashville, TN 37240, USA.,Institute for Integrated Biosystems Research and Education, Vanderbilt University, Nashville, TN 37240, USA
| | - Jody C May
- Department of Chemistry, Vanderbilt University, Nashville, TN 37240, USA.,Center for Innovative Technology, Vanderbilt University, Nashville, TN 37240, USA.,Institute of Chemical Biology, Vanderbilt University, Nashville, TN 37240, USA.,Institute for Integrated Biosystems Research and Education, Vanderbilt University, Nashville, TN 37240, USA
| | - John A McLean
- Department of Chemistry, Vanderbilt University, Nashville, TN 37240, USA.,Center for Innovative Technology, Vanderbilt University, Nashville, TN 37240, USA.,Institute of Chemical Biology, Vanderbilt University, Nashville, TN 37240, USA.,Institute for Integrated Biosystems Research and Education, Vanderbilt University, Nashville, TN 37240, USA
| | - David M Hercules
- Department of Chemistry, Vanderbilt University, Nashville, TN 37240, USA
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170
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Tu J, Zhou Z, Li T, Zhu ZJ. The emerging role of ion mobility-mass spectrometry in lipidomics to facilitate lipid separation and identification. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.03.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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171
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Ridgeway ME, Bleiholder C, Mann M, Park MA. Trends in trapped ion mobility – Mass spectrometry instrumentation. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.03.030] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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172
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Pukala T. Importance of collision cross section measurements by ion mobility mass spectrometry in structural biology. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2019; 33 Suppl 3:72-82. [PMID: 30265417 DOI: 10.1002/rcm.8294] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 09/17/2018] [Accepted: 09/19/2018] [Indexed: 06/08/2023]
Abstract
The field of ion mobility mass spectrometry (IM-MS) has developed rapidly in recent decades, with new fundamental advances underpinning innovative applications. This has been particularly noticeable in the field of biomacromolecular structure determination and structural biology, with pioneering studies revealing new structural insight for complex protein assemblies which control biological function. This perspective offers a review of recent developments in IM-MS which have enabled expanding applications in protein structural biology, principally focusing on the quantitative measurement of collision cross sections and their interpretation to describe higher order protein structures.
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Affiliation(s)
- Tara Pukala
- Discipline of Chemistry, University of Adelaide, North Terrace, Adelaide, South Australia, 5005
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173
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Gao Y, Wang W, He C, Fang Z, Zhang Y, Shi Q. Fractionation and molecular characterization of natural organic matter (NOM) by solid-phase extraction followed by FT-ICR MS and ion mobility MS. Anal Bioanal Chem 2019; 411:6343-6352. [DOI: 10.1007/s00216-019-01943-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 05/05/2019] [Accepted: 05/24/2019] [Indexed: 10/26/2022]
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174
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Monge ME, Dodds JN, Baker ES, Edison AS, Fernández FM. Challenges in Identifying the Dark Molecules of Life. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2019; 12:177-199. [PMID: 30883183 PMCID: PMC6716371 DOI: 10.1146/annurev-anchem-061318-114959] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Metabolomics is the study of the metabolome, the collection of small molecules in living organisms, cells, tissues, and biofluids. Technological advances in mass spectrometry, liquid- and gas-phase separations, nuclear magnetic resonance spectroscopy, and big data analytics have now made it possible to study metabolism at an omics or systems level. The significance of this burgeoning scientific field cannot be overstated: It impacts disciplines ranging from biomedicine to plant science. Despite these advances, the central bottleneck in metabolomics remains the identification of key metabolites that play a class-discriminant role. Because metabolites do not follow a molecular alphabet as proteins and nucleic acids do, their identification is much more time consuming, with a high failure rate. In this review, we critically discuss the state-of-the-art in metabolite identification with specific applications in metabolomics and how technologies such as mass spectrometry, ion mobility, chromatography, and nuclear magnetic resonance currently contribute to this challenging task.
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Affiliation(s)
- María Eugenia Monge
- Centro de Investigaciones en Bionanociencias (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), C1425FQD, Ciudad de Buenos Aires, Argentina
| | - James N Dodds
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, USA
| | - Erin S Baker
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, USA
| | - Arthur S Edison
- Department of Genetics, Department of Biochemistry and Molecular Biology, and Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602, USA
| | - Facundo M Fernández
- School of Chemistry and Biochemistry, Georgia Institute of Technology and Petit Institute for Biochemistry and Bioscience, Atlanta, Georgia 30332, USA;
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175
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Giles K, Ujma J, Wildgoose J, Pringle S, Richardson K, Langridge D, Green M. A Cyclic Ion Mobility-Mass Spectrometry System. Anal Chem 2019; 91:8564-8573. [PMID: 31141659 DOI: 10.1021/acs.analchem.9b01838] [Citation(s) in RCA: 271] [Impact Index Per Article: 54.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Improvements in the performance and availability of commercial instrumentation have made ion mobility-mass spectrometry (IM-MS) an increasingly popular approach for the structural analysis of ionic species as well as for separation of complex mixtures. Here, a new research instrument is presented which enables complex experiments, extending the current scope of IM technology. The instrument is based on a Waters SYNAPT G2-S i IM-MS platform, with the IM separation region modified to accept a cyclic ion mobility (cIM) device. The cIM region consists of a 98 cm path length, closed-loop traveling wave (TW)-enabled IM separator positioned orthogonally to the main ion optical axis. A key part of this geometry and its flexibility is the interface between the ion optical axis and the cIM, where a planar array of electrodes provides control over the TW direction and subsequent ion motion. On either side of the array, there are ion guides used for injection, ejection, storage, and activation of ions. In addition to single and multipass separations around the cIM, providing selectable mobility resolution, the instrument design and control software enable a range of "multifunction" experiments such as mobility selection, activation, storage, IMS n, and importantly custom combinations of these functions. Here, the design and performance of the cIM-MS instrument is highlighted, with a mobility resolving power of approximately 750 demonstrated for 100 passes around the cIM device using a reverse sequence peptide pair. The multifunction capabilities are demonstrated through analysis of three isomeric pentasaccharide species and the small protein ubiquitin.
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Affiliation(s)
- Kevin Giles
- Waters Corporation , Stamford Avenue, Altrincham Road , Wilmslow SK9 4AX , U.K
| | - Jakub Ujma
- Waters Corporation , Stamford Avenue, Altrincham Road , Wilmslow SK9 4AX , U.K
| | - Jason Wildgoose
- Waters Corporation , Stamford Avenue, Altrincham Road , Wilmslow SK9 4AX , U.K
| | - Steven Pringle
- Waters Corporation , Stamford Avenue, Altrincham Road , Wilmslow SK9 4AX , U.K
| | - Keith Richardson
- Waters Corporation , Stamford Avenue, Altrincham Road , Wilmslow SK9 4AX , U.K
| | - David Langridge
- Waters Corporation , Stamford Avenue, Altrincham Road , Wilmslow SK9 4AX , U.K
| | - Martin Green
- Waters Corporation , Stamford Avenue, Altrincham Road , Wilmslow SK9 4AX , U.K
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176
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Reinecke T, Davis AL, Clowers BH. Determination of Gas-Phase Ion Mobility Coefficients Using Voltage Sweep Multiplexing. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:977-986. [PMID: 30989619 DOI: 10.1007/s13361-019-02182-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 02/24/2019] [Accepted: 02/25/2019] [Indexed: 06/09/2023]
Abstract
In a standard single averaged, drift tube ion mobility spectrometry (IMS) experiment, typically less than 1% of the ions are utilized, with the rest of the ions neutralizing on a closed ion gate or ion optic element. Though some efforts at lower pressures (e.g., 4 Torr) have been made to address this issue by concentrating ions prior to release into a drift cell, the ion current reaching the detector during an IMS experiment is often diminished due to this lower duty cycle. Additionally, when considering the temporal nature of the drift tube IMS experiment and the trajectory of IMS towards higher resolution separations and lower duty cycles, increased detector sampling rates are another factor also which further necessitates new modes of conducting the IMS experiment. Placing this trend in context with ion mobility-mass spectrometry instruments (IM-MS), there are numerous types of mass spectrometers that are simply incompatible with the single averaged ion mobility spectrometry experiments due to timing incompatibilities (i.e., ion traps are an order of magnitude slower than the IMS experiment). However, by utilizing a dual gate ion mobility spectrometer for ion multiplexing, ion utilization efficiency can be significantly increased while creating a measurement signal that can be recorded at low sampling rates. In this work, we present the fundamental theory and first results from proof-of-concept measurements using a new type of ion multiplexing that relies on changing the electric field within the drift cell during the course of an experiment while simultaneously opening the ion gates at a constant frequency. For brevity, this mode is termed voltage sweep multiplexing (VSM). Key variables for this type of experiment are discussed and verified with measurements from traditional signal averaged experiments. Graphical Abstract .
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Affiliation(s)
- Tobias Reinecke
- Department of Chemistry, Washington State University, Pullman, WA, 99164, USA
| | - Austen L Davis
- Department of Chemistry, Washington State University, Pullman, WA, 99164, USA
| | - Brian H Clowers
- Department of Chemistry, Washington State University, Pullman, WA, 99164, USA.
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177
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Dixit SM, Ruotolo BT. A Semi-Empirical Framework for Interpreting Traveling Wave Ion Mobility Arrival Time Distributions. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:956-966. [PMID: 30815838 DOI: 10.1007/s13361-019-02133-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/12/2018] [Accepted: 01/04/2019] [Indexed: 06/09/2023]
Abstract
The inherent structural heterogeneity of biomolecules is an important biophysical property that is essential to their function, but is challenging to characterize experimentally. We present a workflow that rapidly and quantitatively assesses the conformational heterogeneity of peptides and proteins in the gas phase using traveling wave ion mobility (TWIM) arrival time distributions (ATDs). We have established a set of semi-empirical equations that model the TWIM ATD peak width and resolution across a wide range of wave amplitudes (V) and wave velocities (v). In addition, a conformational broadening parameter, δ, can be extracted from this analysis that reports on the contribution of conformational heterogeneity to the broadening of TWIM ATD peak width during ion mobility separation. We use this δ value to evaluate the conformational heterogeneity of a set of helical peptides, and our analysis correlates well with previous peak width observations reported for these ions. Furthermore, we use molecular dynamics simulations to independently investigate the general flexibility of these peptides in the gas phase, and generate similar trends found in experimental TWIM data. Finally, we extended our analysis to Avidin, a 64-kDa homotetramer, and quantify the structural heterogeneity of this intact complex using TWIM ATD data as a function of cross-linking. We observe an initial reduction in δ values as a function of cross-linker concentration, demonstrating the sensitivity of our δ value analysis to changes in flexibility of the assembly.
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Affiliation(s)
- Sugyan M Dixit
- Department of Chemistry, University of Michigan, 930 N. University Ave, Ann Arbor, MI, 48109, USA
| | - Brandon T Ruotolo
- Department of Chemistry, University of Michigan, 930 N. University Ave, Ann Arbor, MI, 48109, USA.
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178
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Morris CB, May JC, Leaptrot KL, McLean JA. Evaluating Separation Selectivity and Collision Cross Section Measurement Reproducibility in Helium, Nitrogen, Argon, and Carbon Dioxide Drift Gases for Drift Tube Ion Mobility-Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:1059-1068. [PMID: 30887459 PMCID: PMC6520154 DOI: 10.1007/s13361-019-02151-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 02/05/2019] [Accepted: 02/06/2019] [Indexed: 05/04/2023]
Abstract
Previous ion mobility (IM) studies have demonstrated that varying the drift gas composition can be used to enhance chemical selectivity and resolution, yet there are few drift gas studies aimed at achieving quantitatively reproducible mobility measurements. Here, we critically evaluate the conditions necessary to achieve reproducible collision cross section (CCS) measurements in pure drift gases (helium, nitrogen, argon, and carbon dioxide) using a commercial uniform field drift tube instrument. Optimal experimental parameters are assessed based on the convergence of CCS measurements to reproducible values which are compared with literature values. A suite of calibration standards with diverse masses, biological classes, and charge states are examined to assess chemical selectivity and resolution achievable in each drift gas. Results indicate nitrogen and argon perform similarly and are sufficient for most applications where high resolving power and high peak capacity are desired. Carbon dioxide exhibits more selectivity for resolving structurally heterogeneous compounds, which may be preferable in specific analyte pair separations. Helium demonstrated modest separation capabilities but has utility for comparison to theoretical values and previously published work. In drift gases other than nitrogen, pressure differentials up to 230 mTorr between the drift tube and upstream chamber were optimal for improving correlation to literature values, while in nitrogen, the recommended pressure differential of 150 mTorr was found appropriate. We present recommended experimental parameters as well as gas-specific CCS measurements for structurally homogeneous sets of analytes which are suitable for use by other laboratories as standards for purposes of instrument calibration and overall assessment of IM separation performance.
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Affiliation(s)
- Caleb B Morris
- Center for Innovative Technology, Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA
| | - Jody C May
- Center for Innovative Technology, Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA
| | - Katrina L Leaptrot
- Center for Innovative Technology, Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA
| | - John A McLean
- Center for Innovative Technology, Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA.
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179
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Morris CB, May JC, Leaptrot KL, McLean JA. Evaluating Separation Selectivity and Collision Cross Section Measurement Reproducibility in Helium, Nitrogen, Argon, and Carbon Dioxide Drift Gases for Drift Tube Ion Mobility-Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:1059-1068. [PMID: 30887459 DOI: 10.1021/jasms.8b06014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 02/05/2019] [Accepted: 02/06/2019] [Indexed: 05/18/2023]
Abstract
Previous ion mobility (IM) studies have demonstrated that varying the drift gas composition can be used to enhance chemical selectivity and resolution, yet there are few drift gas studies aimed at achieving quantitatively reproducible mobility measurements. Here, we critically evaluate the conditions necessary to achieve reproducible collision cross section (CCS) measurements in pure drift gases (helium, nitrogen, argon, and carbon dioxide) using a commercial uniform field drift tube instrument. Optimal experimental parameters are assessed based on the convergence of CCS measurements to reproducible values which are compared with literature values. A suite of calibration standards with diverse masses, biological classes, and charge states are examined to assess chemical selectivity and resolution achievable in each drift gas. Results indicate nitrogen and argon perform similarly and are sufficient for most applications where high resolving power and high peak capacity are desired. Carbon dioxide exhibits more selectivity for resolving structurally heterogeneous compounds, which may be preferable in specific analyte pair separations. Helium demonstrated modest separation capabilities but has utility for comparison to theoretical values and previously published work. In drift gases other than nitrogen, pressure differentials up to 230 mTorr between the drift tube and upstream chamber were optimal for improving correlation to literature values, while in nitrogen, the recommended pressure differential of 150 mTorr was found appropriate. We present recommended experimental parameters as well as gas-specific CCS measurements for structurally homogeneous sets of analytes which are suitable for use by other laboratories as standards for purposes of instrument calibration and overall assessment of IM separation performance.
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Affiliation(s)
- Caleb B Morris
- Center for Innovative Technology, Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA
| | - Jody C May
- Center for Innovative Technology, Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA
| | - Katrina L Leaptrot
- Center for Innovative Technology, Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA
| | - John A McLean
- Center for Innovative Technology, Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA.
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180
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Paglia G, Astarita G. Traveling Wave Ion Mobility Mass Spectrometry: Metabolomics Applications. Methods Mol Biol 2019; 1978:39-53. [PMID: 31119656 DOI: 10.1007/978-1-4939-9236-2_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
Abstract
Ion mobility (IM) spectrometry can separate gas-phase ions according to their charge, molecular shape, and size. In recent years, several IM technologies have been integrated with mass spectrometry (MS) and launched as commercially available instrumentation for metabolomics analysis. The addition of IM to MS-based metabolomics workflows provides an additional degree of separation to chromatography and MS resolving power, improving peak capacity and signal-to-noise ratio. Moreover, it makes possible to experimentally derive collision cross section (CCS), which can be used as an additional coordinate for metabolite identification, together with accurate mass and fragmentation information. The addition of CCS to current metabolome database would allow to filter and score molecules based on their CCS values, adding more confidence in the identification process during metabolomics experiments.In this chapter, we present procedures for the integration of travelling-wave (TW)-IM into traditional MS-based metabolomics workflows.
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Affiliation(s)
| | - Giuseppe Astarita
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, DC, USA
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181
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Xie X, Xia Y. Analysis of Conjugated Fatty Acid Isomers by the Paternò-Büchi Reaction and Trapped Ion Mobility Mass Spectrometry. Anal Chem 2019; 91:7173-7180. [DOI: 10.1021/acs.analchem.9b00374] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Xiaobo Xie
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yu Xia
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
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182
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Gabelica V, Shvartsburg AA, Afonso C, Barran P, Benesch JL, Bleiholder C, Bowers MT, Bilbao A, Bush MF, Campbell JL, Campuzano ID, Causon T, Clowers BH, Creaser CS, De Pauw E, Far J, Fernandez‐Lima F, Fjeldsted JC, Giles K, Groessl M, Hogan CJ, Hann S, Kim HI, Kurulugama RT, May JC, McLean JA, Pagel K, Richardson K, Ridgeway ME, Rosu F, Sobott F, Thalassinos K, Valentine SJ, Wyttenbach T. Recommendations for reporting ion mobility Mass Spectrometry measurements. MASS SPECTROMETRY REVIEWS 2019; 38:291-320. [PMID: 30707468 PMCID: PMC6618043 DOI: 10.1002/mas.21585] [Citation(s) in RCA: 288] [Impact Index Per Article: 57.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 11/01/2018] [Accepted: 11/02/2018] [Indexed: 05/02/2023]
Abstract
Here we present a guide to ion mobility mass spectrometry experiments, which covers both linear and nonlinear methods: what is measured, how the measurements are done, and how to report the results, including the uncertainties of mobility and collision cross section values. The guide aims to clarify some possibly confusing concepts, and the reporting recommendations should help researchers, authors and reviewers to contribute comprehensive reports, so that the ion mobility data can be reused more confidently. Starting from the concept of the definition of the measurand, we emphasize that (i) mobility values (K0 ) depend intrinsically on ion structure, the nature of the bath gas, temperature, and E/N; (ii) ion mobility does not measure molecular surfaces directly, but collision cross section (CCS) values are derived from mobility values using a physical model; (iii) methods relying on calibration are empirical (and thus may provide method-dependent results) only if the gas nature, temperature or E/N cannot match those of the primary method. Our analysis highlights the urgency of a community effort toward establishing primary standards and reference materials for ion mobility, and provides recommendations to do so. © 2019 The Authors. Mass Spectrometry Reviews Published by Wiley Periodicals, Inc.
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Affiliation(s)
- Valérie Gabelica
- University of Bordeaux, INSERM and CNRS, ARNA Laboratory, IECB site2 rue Robert Escarpit, 33600PessacFrance
| | | | | | - Perdita Barran
- Michael Barber Centre for Collaborative Mass SpectrometryManchester Institute for Biotechnology, University of ManchesterManchesterUK
| | - Justin L.P. Benesch
- Department of Chemistry, Chemistry Research LaboratoryUniversity of Oxford, Mansfield Road, OX1 3TAOxfordUK
| | - Christian Bleiholder
- Department of Chemistry and BiochemistryFlorida State UniversityTallahasseeFlorida32311
| | | | - Aivett Bilbao
- Biological Sciences DivisionPacific Northwest National LaboratoryRichlandWashington
| | - Matthew F. Bush
- Department of ChemistryUniversity of WashingtonSeattleWashington
| | | | | | - Tim Causon
- University of Natural Resources and Life Sciences (BOKU)Department of Chemistry, Division of Analytical ChemistryViennaAustria
| | - Brian H. Clowers
- Department of ChemistryWashington State UniversityPullmanWashington
| | - Colin S. Creaser
- Centre for Analytical ScienceDepartment of Chemistry, Loughborough UniversityLoughboroughUK
| | - Edwin De Pauw
- Laboratoire de spectrométrie de masse (L.S.M.) − Molecular SystemsUniversité de LiègeLiègeBelgium
| | - Johann Far
- Laboratoire de spectrométrie de masse (L.S.M.) − Molecular SystemsUniversité de LiègeLiègeBelgium
| | | | | | | | - Michael Groessl
- Department of Nephrology and Hypertension and Department of BioMedical ResearchInselspital, Bern University Hospital, University of Bern, Switzerland and TofwerkThunSwitzerland
| | | | - Stephan Hann
- University of Natural Resources and Life Sciences (BOKU)Department of Chemistry, Division of Analytical ChemistryViennaAustria
| | - Hugh I. Kim
- Department of ChemistryKorea UniversitySeoulKorea
| | | | - Jody C. May
- Department of ChemistryCenter for Innovative Technology, Vanderbilt UniversityNashvilleTennessee
| | - John A. McLean
- Department of ChemistryCenter for Innovative Technology, Vanderbilt UniversityNashvilleTennessee
| | - Kevin Pagel
- Freie Universitaet BerlinInstitute for Chemistry and BiochemistryBerlinGermany
| | | | | | - Frédéric Rosu
- CNRS, INSERM and University of BordeauxInstitut Européen de Chimie et BiologiePessacFrance
| | - Frank Sobott
- Antwerp UniversityBiomolecular & Analytical Mass SpectrometryAntwerpBelgium
- Astbury Centre for Structural Molecular BiologyUniversity of LeedsLeedsUK
- School of Molecular and Cellular BiologyUniversity of LeedsLeedsUK
| | - Konstantinos Thalassinos
- Institute of Structural and Molecular Biology, Division of BiosciencesUniversity College LondonLondonWC1E 6BTUK
- United Kingdom and Institute of Structural and Molecular BiologyDepartment of Biological Sciences, Birkbeck College, University of LondonLondonWC1E 7HXUK
| | - Stephen J. Valentine
- C. Eugene Bennett Department of ChemistryWest Virginia UniversityMorgantownWest Virginia
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183
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Zhao B, Zhuang X, Bian X, Pi Z, Liu S, Liu Z, Song F. Effects of aprotic solvents on the stability of metal-free superoxide dismutase probed by native electrospray ionization-ion mobility-mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2019; 54:351-358. [PMID: 30734979 DOI: 10.1002/jms.4341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 01/29/2019] [Indexed: 06/09/2023]
Abstract
Considering that aprotic solvents are often used as cosolvents in investigating the interactions between small molecules and proteins, we assessed the effects of five aprotic solvents represented by dimethylformamide (DMF) on the structure stabilities of metal-free SOD1 (apo-SOD1) by native electrospray ionization-ion mobility-mass spectrometry (ESI-IM-MS). These aprotic solvents include DMF, 1,3-dimethyl-2-imidazolidinone (DMI), dimethyl sulfoxide (DMSO), acetonitrile (ACN), and tetrahydrofuran (THF). Results indicated that DMI, DMSO, and DMF at low percentage concentration could reduce the average charge and the dimer dissociation of apo-SOD1. By contrast, ACN and THF at low concentration have no similar effect. DMF was selected as a representative solvent to further investigate the detailed effects on the structure stability of apo-SOD1 by using collision-induced dissociation and unfolding. The results reveal that the addition of minimal DMF to an aqueous protein solution can protect against the unfolding and dissociation of dimer, even under destabilizing conditions (such as low pH or high cone voltage). When the different percentage concentrations of DMF were added, the average collision cross section of apo-SOD1 showed that apo-SOD1 became compacted when the DMF concentration increased from 0% to 1% and eventually started extending when increased from 1% to 20%. The results indicated that DMF has similar effects to DMSO in native mass spectrometry (MS) and it can also be used as a cosolvent besides DMSO in investigating the stabilities of proteins and the interactions between small molecules and proteins.
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Affiliation(s)
- Bing Zhao
- National Center of Mass Spectrometry in Changchun & Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, China
| | - Xiaoyu Zhuang
- School of Pharmacy, Fudan University, Shanghai, China
| | - Xinyu Bian
- National Center of Mass Spectrometry in Changchun & Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, China
| | - Zifeng Pi
- National Center of Mass Spectrometry in Changchun & Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| | - Shu Liu
- National Center of Mass Spectrometry in Changchun & Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| | - Zhiqiang Liu
- National Center of Mass Spectrometry in Changchun & Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| | - Fengrui Song
- National Center of Mass Spectrometry in Changchun & Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, China
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184
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Jeanne Dit Fouque K, Ramirez CE, Lewis RL, Koelmel JP, Garrett TJ, Yost RA, Fernandez-Lima F. Effective Liquid Chromatography–Trapped Ion Mobility Spectrometry–Mass Spectrometry Separation of Isomeric Lipid Species. Anal Chem 2019; 91:5021-5027. [DOI: 10.1021/acs.analchem.8b04979] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kevin Jeanne Dit Fouque
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
| | - Cesar E. Ramirez
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
| | - Russell L. Lewis
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, Unites States
| | - Jeremy P. Koelmel
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, Florida 32610, United States
| | - Timothy J. Garrett
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, Florida 32610, United States
| | - Richard A. Yost
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, Unites States
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, Florida 32610, United States
| | - Francisco Fernandez-Lima
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
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185
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Hernández-Mesa M, Monteau F, Le Bizec B, Dervilly-Pinel G. Potential of ion mobility-mass spectrometry for both targeted and non-targeted analysis of phase II steroid metabolites in urine. Anal Chim Acta X 2019; 1:100006. [PMID: 33117973 PMCID: PMC7587051 DOI: 10.1016/j.acax.2019.100006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 01/16/2019] [Accepted: 01/21/2019] [Indexed: 12/18/2022] Open
Abstract
In recent years, the commercialization of hybrid ion mobility-mass spectrometers and their integration in traditional LC-MS workflows provide new opportunities to extend the current boundaries of targeted and non-targeted analyses. When coupled to LC-MS, ion mobility spectrometry (IMS) provides a novel characterization parameter, the so-called averaged collision cross section (CCS, Ω), as well as improves method selectivity and sensitivity by the separation of isobaric and isomeric molecules and the isolation of the analytes of interest from background noise. In this work, we have explored the potential and advantages of this technology for carrying out the determination of phase II steroid metabolites (i.e. androgen and estrogen conjugates, including glucuronide and sulfate compounds; n = 25) in urine samples. These molecules have been selected based on their relevance in the fields of chemical food safety and doping control, as well as in metabolomics studies. The influence of urine matrix on the CCS of steroid metabolites was evaluated in order to give more confidence to current CCS databases and support its use as complementary information to retention time (Rt) and mass spectra for compound identification. Samples were only diluted 10-fold with aqueous formic acid (0.1%, v/v) prior analysis. Only an almost insignificant effect of adult bovine urine matrix on the CCS of certain steroid metabolites was observed in comparison with calve urine matrix, which is a less complex sample. In addition, high accuracy was achieved for CCS measurements carried out over four months (ΔCCS < 1.3% for 99.8% of CCS measurements; n = 1806). Interestingly, it has been observed that signal-to-noise (S/N) ratio could be improved at least 2 or 7-fold when IMS is combined with LC-MS. In addition to the separation of isomeric steroid pairs (i.e. etiocholanolone glucuronide and epiandrosterone glucuronide, as well as 19-noretiocholanolone glucuronide and 19-norandrosterone glucuronide), steroid-based ions were also separated in the IMS dimension from co-eluting matrix compounds that presented similar mass-to-charge ratio (m/z). Finally, based on CCS measurements and as a proof of concept, 17α-boldenone glucuronide has been identified as one of the main metabolites resulted from boldione administration to calves.
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Affiliation(s)
- Maykel Hernández-Mesa
- Laboratoire d’Etude des Résidus et Contaminants dans les Aliments (LABERCA), Oniris, INRA UMR 1329, UBL, Nantes, F-44307, France
| | - Fabrice Monteau
- Laboratoire d’Etude des Résidus et Contaminants dans les Aliments (LABERCA), Oniris, INRA UMR 1329, UBL, Nantes, F-44307, France
| | - Bruno Le Bizec
- Laboratoire d’Etude des Résidus et Contaminants dans les Aliments (LABERCA), Oniris, INRA UMR 1329, UBL, Nantes, F-44307, France
| | - Gaud Dervilly-Pinel
- Laboratoire d’Etude des Résidus et Contaminants dans les Aliments (LABERCA), Oniris, INRA UMR 1329, UBL, Nantes, F-44307, France
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186
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Shirzadeh M, Boone CD, Laganowsky A, Russell DH. Topological Analysis of Transthyretin Disassembly Mechanism: Surface-Induced Dissociation Reveals Hidden Reaction Pathways. Anal Chem 2019; 91:2345-2351. [PMID: 30642177 PMCID: PMC6464633 DOI: 10.1021/acs.analchem.8b05066] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The proposed mechanism of fibril formation of transthyretin (TTR) involves self-assembly of partially unfolded monomers. However, the mechanism(s) of disassembly to monomer and potential intermediates involved in this process are not fully understood. In this study, native mass spectrometry and surface-induced dissociation (SID) are used to investigate the TTR disassembly mechanism(s) and the effects of temperature and ionic strength on the kinetics of TTR complex formation. Results from the SID of hybrid tetramers formed during subunit exchange provide strong evidence for a two-step mechanism whereby the tetramer dissociates to dimers that then dissociate to monomers. Also, the SID results uncovered a hidden pathway in which a specific topology of the hybrid tetramer is directly produced by assembly of dimers in the early steps of TTR disassembly. Implementation of SID to dissect protein topology during subunit exchange provides unique opportunities to gain unparalleled insight into disassembly pathways.
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Affiliation(s)
- Mehdi Shirzadeh
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Christopher D. Boone
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Arthur Laganowsky
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - David H. Russell
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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187
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Polasky DA, Dixit SM, Fantin SM, Ruotolo BT. CIUSuite 2: Next-Generation Software for the Analysis of Gas-Phase Protein Unfolding Data. Anal Chem 2019; 91:3147-3155. [DOI: 10.1021/acs.analchem.8b05762] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Daniel A. Polasky
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Sugyan M. Dixit
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Sarah M. Fantin
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Brandon T. Ruotolo
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
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188
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Chiluwal U, Lee G, Rajapakse MY, Willy T, Lukow S, Schmidt H, Eiceman GA. Tandem ion mobility spectrometry at ambient pressure and field decomposition of mobility selected ions of explosives and interferences. Analyst 2019; 144:2052-2061. [DOI: 10.1039/c8an02041h] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A tandem ion mobility spectrometer at ambient pressure included a thermal desorption inlet, two drift regions, dual ion shutters, and a wire grid assembly in the second drift region.
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Affiliation(s)
- Umesh Chiluwal
- Department of Chemistry and Biochemistry
- New Mexico State University
- Las Cruces
- USA
| | - Gyoungil Lee
- Department of Chemistry and Biochemistry
- New Mexico State University
- Las Cruces
- USA
| | | | - Timothy Willy
- Department of Chemistry and Biochemistry
- New Mexico State University
- Las Cruces
- USA
| | | | | | - Gary A. Eiceman
- Department of Chemistry and Biochemistry
- New Mexico State University
- Las Cruces
- USA
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189
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Ion Mobility in Structural Biology. ADVANCES IN ION MOBILITY-MASS SPECTROMETRY: FUNDAMENTALS, INSTRUMENTATION AND APPLICATIONS 2019. [DOI: 10.1016/bs.coac.2018.10.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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190
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Zandkarimi F, Brown LM. Application of Ion Mobility Mass Spectrometry in Lipidomics. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1140:317-326. [DOI: 10.1007/978-3-030-15950-4_18] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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191
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Chouinard CD, Nagy G, Smith RD, Baker ES. Ion Mobility-Mass Spectrometry in Metabolomic, Lipidomic, and Proteomic Analyses. ADVANCES IN ION MOBILITY-MASS SPECTROMETRY: FUNDAMENTALS, INSTRUMENTATION AND APPLICATIONS 2019. [DOI: 10.1016/bs.coac.2018.11.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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192
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Lim D, Davidson KL, Son S, Ahmed A, Bush MF, Kim S. Determining Collision Cross‐Sections of Aromatic Compounds in Crude Oil by Using Aromatic Compound Mixture as Calibration Standard. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11653] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Dongwan Lim
- Department of ChemistryKyungpook National University Daegu 41566 Republic of Korea
| | | | - Seungwoo Son
- Department of ChemistryKyungpook National University Daegu 41566 Republic of Korea
| | - Arif Ahmed
- Department of ChemistryKyungpook National University Daegu 41566 Republic of Korea
| | - Matthew F. Bush
- Department of ChemistryUniversity of Washington Seattle WA, 98195‐1700 USA
| | - Sunghwan Kim
- Department of ChemistryKyungpook National University Daegu 41566 Republic of Korea
- Green‐Nano Materials Research Center Daegu 41566 Republic of Korea
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193
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Nichols CM, Dodds JN, Rose BS, Picache JA, Morris CB, Codreanu SG, May JC, Sherrod SD, McLean JA. Untargeted Molecular Discovery in Primary Metabolism: Collision Cross Section as a Molecular Descriptor in Ion Mobility-Mass Spectrometry. Anal Chem 2018; 90:14484-14492. [PMID: 30449086 PMCID: PMC6819070 DOI: 10.1021/acs.analchem.8b04322] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this work, we established a collision cross section (CCS) library of primary metabolites based on analytical standards in the Mass Spectrometry Metabolite Library of Standards (MSMLS) using a commercially available ion mobility-mass spectrometer (IM-MS). From the 554 unique compounds in the MSMLS plate library, we obtained a total of 1246 CCS measurements over a wide range of biochemical classes and adduct types. Resulting data analysis demonstrated that the curated CCS library provides broad molecular coverage of metabolic pathways and highlights intrinsic mass-mobility relationships for specific metabolite superclasses. The separation and characterization of isomeric metabolites were assessed, and all molecular species contained within the plate library, including isomers, were critically evaluated to determine the analytical separation efficiency in both the mass ( m/ z) and mobility (CCS/ΔCCS) dimension required for untargeted metabolomic analyses. To further demonstrate the analytical utility of CCS as an additional molecular descriptor, a well-characterized biological sample of human plasma serum (NIST SRM 1950) was examined by LC-IM-MS and used to provide a detailed isomeric analysis of carbohydrate constituents by ion mobility.
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Affiliation(s)
- Charles M Nichols
- Department of Chemistry, Center for Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - James N Dodds
- Department of Chemistry, Center for Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Bailey S Rose
- Department of Chemistry, Center for Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Jaqueline A Picache
- Department of Chemistry, Center for Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Caleb B Morris
- Department of Chemistry, Center for Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Simona G Codreanu
- Department of Chemistry, Center for Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Jody C May
- Department of Chemistry, Center for Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Stacy D Sherrod
- Department of Chemistry, Center for Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - John A McLean
- Department of Chemistry, Center for Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center , Vanderbilt University , Nashville , Tennessee 37235 , United States
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194
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Kalenius E, Groessl M, Rissanen K. Ion mobility–mass spectrometry of supramolecular complexes and assemblies. Nat Rev Chem 2018. [DOI: 10.1038/s41570-018-0062-2] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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195
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Meier F, Brunner AD, Koch S, Koch H, Lubeck M, Krause M, Goedecke N, Decker J, Kosinski T, Park MA, Bache N, Hoerning O, Cox J, Räther O, Mann M. Online Parallel Accumulation-Serial Fragmentation (PASEF) with a Novel Trapped Ion Mobility Mass Spectrometer. Mol Cell Proteomics 2018; 17:2534-2545. [PMID: 30385480 PMCID: PMC6283298 DOI: 10.1074/mcp.tir118.000900] [Citation(s) in RCA: 510] [Impact Index Per Article: 85.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 10/30/2018] [Indexed: 11/06/2022] Open
Abstract
In bottom-up proteomics, peptides are separated by liquid chromatography with elution peak widths in the range of seconds, whereas mass spectra are acquired in about 100 microseconds with time-of-flight (TOF) instruments. This allows adding ion mobility as a third dimension of separation. Among several formats, trapped ion mobility spectrometry (TIMS) is attractive because of its small size, low voltage requirements and high efficiency of ion utilization. We have recently demonstrated a scan mode termed parallel accumulation - serial fragmentation (PASEF), which multiplies the sequencing speed without any loss in sensitivity (Meier et al., PMID: 26538118). Here we introduce the timsTOF Pro instrument, which optimally implements online PASEF. It features an orthogonal ion path into the ion mobility device, limiting the amount of debris entering the instrument and making it very robust in daily operation. We investigate different precursor selection schemes for shotgun proteomics to optimally allocate in excess of 100 fragmentation events per second. More than 600,000 fragmentation spectra in standard 120 min LC runs are achievable, which can be used for near exhaustive precursor selection in complex mixtures or accumulating the signal of weak precursors. In 120 min single runs of HeLa digest, MaxQuant identified more than 6,000 proteins without matching to a library and with high quantitative reproducibility (R > 0.97). Online PASEF achieves a remarkable sensitivity with more than 2,500 proteins identified in 30 min runs of only 10 ng HeLa digest. We also show that highly reproducible collisional cross sections can be acquired on a large scale (R > 0.99). PASEF on the timsTOF Pro is a valuable addition to the technological toolbox in proteomics, with a number of unique operating modes that are only beginning to be explored.
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Affiliation(s)
- Florian Meier
- Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152 Martinsried, Germany
| | - Andreas-David Brunner
- Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152 Martinsried, Germany
| | - Scarlet Koch
- Bruker Daltonik GmbH, Fahrenheitstr. 4, 28359 Bremen, Germany
| | - Heiner Koch
- Bruker Daltonik GmbH, Fahrenheitstr. 4, 28359 Bremen, Germany
| | - Markus Lubeck
- Bruker Daltonik GmbH, Fahrenheitstr. 4, 28359 Bremen, Germany
| | - Michael Krause
- Bruker Daltonik GmbH, Fahrenheitstr. 4, 28359 Bremen, Germany
| | - Niels Goedecke
- Bruker Daltonik GmbH, Fahrenheitstr. 4, 28359 Bremen, Germany
| | - Jens Decker
- Bruker Daltonik GmbH, Fahrenheitstr. 4, 28359 Bremen, Germany
| | - Thomas Kosinski
- Bruker Daltonik GmbH, Fahrenheitstr. 4, 28359 Bremen, Germany
| | - Melvin A Park
- Bruker Daltonics Inc., Manning Road, Billerica, Massachusetts 01821
| | - Nicolai Bache
- Evosep Biosystems, Thriges Pl. 6, 5000 Odense, Denmark
| | - Ole Hoerning
- Evosep Biosystems, Thriges Pl. 6, 5000 Odense, Denmark
| | - Jürgen Cox
- Computational Systems Biochemistry, Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152 Martinsried, Germany
| | - Oliver Räther
- Bruker Daltonik GmbH, Fahrenheitstr. 4, 28359 Bremen, Germany
| | - Matthias Mann
- Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152 Martinsried, Germany; NNF Center for Protein Research, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark.
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196
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Ouyang H, Bo T, Zhang Z, Guo X, He M, Li J, Yang S, Ma X, Feng Y. Ion mobility mass spectrometry with molecular modelling to reveal bioactive isomer conformations and underlying relationship with isomerization. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2018; 32:1931-1940. [PMID: 30151930 DOI: 10.1002/rcm.8271] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/21/2018] [Accepted: 08/20/2018] [Indexed: 06/08/2023]
Abstract
RATIONALE In medicine and drug development, molecular modelling is an important tool. It is attractive to develop a platform connecting the theoretical structural modelling and the results from experimental measurement. In addition, the separation and structural analysis of bioactive constituent isomers are still challenging tasks. METHODS Drift tube ion mobility (IM) mass spectrometry (MS) provides the experimental collision cross section (CCS) which contains the structural information. The experimental CCS can be compared with the calculated CCS of the molecular modelling structures. This technique is especially useful for bioactive constituents in herbal medicine because active isomers with the same chemical formula are common in these samples. IM helps separate and identify these isomers and reveals details about their structures and conformations. RESULTS Two model bioactive constituents, caffeoylquinic acids (CQAs) and dicaffeoylquinic acids (di-CQAs), were selected to systematically investigate the influence of solution, ion source conditions and ion heating on the isomer CCS distributions. By comparing the calculated CCS with the experimental value, we identified the favorable conformations of CQAs. The most compact conformation of a CQA was less likely to isomerize than the more extended conformation. It was found that the isomerization tendency was in accord with the conformation favorability. CONCLUSIONS This study offers an effective approach to predict and demystify the conformation and isomerization of the active constituents in herbal medicines.
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Affiliation(s)
- Hui Ouyang
- Jiangxi University of Traditional Chinese Medicine, No. 818 Yunwan Road, Nanchang, 330002, China
| | - Tao Bo
- Agilent Technologies, No. 3, Wang Jing Bei Lu, Beijing, 100102, China
| | - Zhengxiang Zhang
- Agilent Technologies, No. 3, Wang Jing Bei Lu, Beijing, 100102, China
| | - Xinqiu Guo
- Ming De Tian Sheng Biotech Inc., Changping Campus of Peking University, Beijing, 102200, China
| | - Mingzhen He
- Jiangxi University of Traditional Chinese Medicine, No. 818 Yunwan Road, Nanchang, 330002, China
| | - Junmao Li
- Jiangxi University of Traditional Chinese Medicine, No. 818 Yunwan Road, Nanchang, 330002, China
| | - Shilin Yang
- Jiangxi University of Traditional Chinese Medicine, No. 818 Yunwan Road, Nanchang, 330002, China
- State Key Laboratory of Innovative Drug and Efficient Energy-Saving Pharmaceutical Equipment, No. 56 Yangming Road, Nanchang, 330006, China
| | - Xin Ma
- Agilent Technologies, No. 3, Wang Jing Bei Lu, Beijing, 100102, China
| | - Yulin Feng
- Jiangxi University of Traditional Chinese Medicine, No. 818 Yunwan Road, Nanchang, 330002, China
- State Key Laboratory of Innovative Drug and Efficient Energy-Saving Pharmaceutical Equipment, No. 56 Yangming Road, Nanchang, 330006, China
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197
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Niyonsaba E, Manheim JM, Yerabolu R, Kenttämaa HI. Recent Advances in Petroleum Analysis by Mass Spectrometry. Anal Chem 2018; 91:156-177. [PMID: 30428670 DOI: 10.1021/acs.analchem.8b05258] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Edouard Niyonsaba
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jeremy M. Manheim
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Ravikiran Yerabolu
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Hilkka I. Kenttämaa
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
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198
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Yassine MM, Dabek-Zlotorzynska E. Investigation of isomeric structures in a commercial mixture of naphthenic acids using ultrahigh pressure liquid chromatography coupled to hybrid traveling wave ion mobility-time of flight mass spectrometry. J Chromatogr A 2018; 1572:90-99. [DOI: 10.1016/j.chroma.2018.08.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 08/13/2018] [Accepted: 08/23/2018] [Indexed: 12/23/2022]
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199
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Hinnenkamp V, Klein J, Meckelmann SW, Balsaa P, Schmidt TC, Schmitz OJ. Comparison of CCS Values Determined by Traveling Wave Ion Mobility Mass Spectrometry and Drift Tube Ion Mobility Mass Spectrometry. Anal Chem 2018; 90:12042-12050. [DOI: 10.1021/acs.analchem.8b02711] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Vanessa Hinnenkamp
- IWW Water Centre, Moritzstraße 26, 45476 Muelheim an der Ruhr, Germany
- Instrumental Analytical Chemistry and Centre for Water and Environmental Research, Universitaetsstrasse 5, 45141 Essen, Germany
| | | | | | - Peter Balsaa
- IWW Water Centre, Moritzstraße 26, 45476 Muelheim an der Ruhr, Germany
| | - Torsten C. Schmidt
- IWW Water Centre, Moritzstraße 26, 45476 Muelheim an der Ruhr, Germany
- Instrumental Analytical Chemistry and Centre for Water and Environmental Research, Universitaetsstrasse 5, 45141 Essen, Germany
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200
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Tose LV, Benigni P, Leyva D, Sundberg A, Ramírez CE, Ridgeway ME, Park MA, Romão W, Jaffé R, Fernandez-Lima F. Coupling trapped ion mobility spectrometry to mass spectrometry: trapped ion mobility spectrometry-time-of-flight mass spectrometry versus trapped ion mobility spectrometry-Fourier transform ion cyclotron resonance mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2018; 32:1287-1295. [PMID: 29756663 DOI: 10.1002/rcm.8165] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 03/28/2018] [Accepted: 05/03/2018] [Indexed: 05/05/2023]
Abstract
RATIONALE There is a need for fast, post-ionization separation during the analysis of complex mixtures. In this study, we evaluate the use of a high-resolution mobility analyzer with high-resolution and ultrahigh-resolution mass spectrometry for unsupervised molecular feature detection. Goals include the study of the reproducibility of trapped ion mobility spectrometry (TIMS) across platforms, applicability range, and potential challenges during routine analysis. METHODS A TIMS analyzer was coupled to time-of-flight mass spectrometry (TOF MS) and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) instruments for the analysis of singly charged species in the m/z 150-800 range of a complex mixture (Suwannee River Fulvic Acid Standard). Molecular features were detected using an unsupervised algorithm based on chemical formula and IMS profiles. RESULTS TIMS-TOF MS and TIMS-FT-ICR MS analysis provided 4950 and 7760 m/z signals, 1430 and 3050 formulas using the general Cx Hy N0-3 O0-19 S0-1 composition, and 7600 and 22 350 [m/z; chemical formula; K; CCS] features, respectively. CONCLUSIONS TIMS coupled to TOF MS and FT-ICR MS showed similar performance and high reproducibility. For the analysis of complex mixtures, both platforms were able to capture the major trends and characteristics; however, as the chemical complexity at the level of nominal mass increases with m/z (m/z >300-350), only TIMS-FT-ICR MS was able to report the lower abundance compositional trends.
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Affiliation(s)
- Lilian V Tose
- Federal University of Espírito Santo, Petroleomic and Forensic Chemistry Laboratory, Department of Chemistry, 29075-910, Vitória, ES, Brazil
| | - Paolo Benigni
- Florida International University, Department of Chemistry and Biochemistry, Miami, FL, 33199, USA
| | - Dennys Leyva
- Florida International University, Department of Chemistry and Biochemistry, Miami, FL, 33199, USA
| | - Abigail Sundberg
- Florida International University, Department of Chemistry and Biochemistry, Miami, FL, 33199, USA
| | - César E Ramírez
- Florida International University, Department of Chemistry and Biochemistry, Miami, FL, 33199, USA
| | | | | | - Wanderson Romão
- Federal University of Espírito Santo, Petroleomic and Forensic Chemistry Laboratory, Department of Chemistry, 29075-910, Vitória, ES, Brazil
- Federal Institute of Education, Science and Technology of Espírito Santo, 29106-010, Vila Velha, ES, Brazil
| | - Rudolf Jaffé
- Florida International University, Department of Chemistry and Biochemistry, Miami, FL, 33199, USA
- Florida International University, Southeast Environmental Research Center, Miami, FL, 33199, USA
| | - Francisco Fernandez-Lima
- Florida International University, Department of Chemistry and Biochemistry, Miami, FL, 33199, USA
- Florida International University, Southeast Environmental Research Center, Miami, FL, 33199, USA
- Biomolecular Sciences Institute, Florida International University, Miami, FL, 33199, USA
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