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Ovbude ST, Sharmeen S, Kyei I, Olupathage H, Jones J, Bell RJ, Powers R, Hage DS. Applications of chromatographic methods in metabolomics: A review. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1239:124124. [PMID: 38640794 DOI: 10.1016/j.jchromb.2024.124124] [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] [Received: 10/03/2023] [Revised: 03/11/2024] [Accepted: 04/10/2024] [Indexed: 04/21/2024]
Abstract
Chromatography is a robust and reliable separation method that can use various stationary phases to separate complex mixtures commonly seen in metabolomics. This review examines the types of chromatography and stationary phases that have been used in targeted or untargeted metabolomics with methods such as mass spectrometry (MS) and nuclear magnetic resonance (NMR) spectroscopy. General considerations for sample pretreatment and separations in metabolomics are considered, along with the various supports and separation formats for chromatography that have been used in such work. The types of liquid chromatography (LC) that have been most extensively used in metabolomics will be examined, such as reversed-phase liquid chromatography and hydrophilic liquid interaction chromatography. In addition, other forms of LC that have been used in more limited applications for metabolomics (e.g., ion-exchange, size-exclusion, and affinity methods) will be discussed to illustrate how these techniques may be utilized for new and future research in this field. Multidimensional LC methods are also discussed, as well as the use of gas chromatography and supercritical fluid chromatography in metabolomics. In addition, the roles of chromatography in NMR- vs. MS-based metabolomics are considered. Applications are given within the field of metabolomics for each type of chromatography, along with potential advantages or limitations of these separation methods.
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Affiliation(s)
- Susan T Ovbude
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Sadia Sharmeen
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Isaac Kyei
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Harshana Olupathage
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Jacob Jones
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Richard J Bell
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Robert Powers
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA; Nebraska Center for Integrated Biomolecular Communication, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - David S Hage
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA.
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Staniak M, Wójciak M, Sowa I, Tyszczuk-Rotko K, Strzemski M, Dresler S, Myśliński W. Silica-Based Monolithic Columns as a Tool in HPLC-An Overview of Application in Analysis of Active Compounds in Biological Samples. Molecules 2020; 25:molecules25143149. [PMID: 32660127 PMCID: PMC7397265 DOI: 10.3390/molecules25143149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/02/2020] [Accepted: 07/06/2020] [Indexed: 01/08/2023] Open
Abstract
Monolithic fillings used in chromatography are of great interest among scientists since the first reports of their synthesis and use were published. In the 20 years since silica-based monolithic columns were introduced into the commercial market, numerous papers describing their chromatographical properties and utility in various branches of industry and scientific investigations were presented. This review is focused on possible applications of commercially available silica-based HPLC monolithic columns in the analysis of biological samples.
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Affiliation(s)
- Michał Staniak
- Department of Analytical Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland; (I.S.); (M.S.)
- Correspondence: (M.S.); (M.W.)
| | - Magdalena Wójciak
- Department of Analytical Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland; (I.S.); (M.S.)
- Correspondence: (M.S.); (M.W.)
| | - Ireneusz Sowa
- Department of Analytical Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland; (I.S.); (M.S.)
| | - Katarzyna Tyszczuk-Rotko
- Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Skłodowska University Lublin, 20-031 Lublin, Poland;
| | - Maciej Strzemski
- Department of Analytical Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland; (I.S.); (M.S.)
| | - Sławomir Dresler
- Department of Plant Physiology and Biophysics, Maria Curie-Skłodowska University, 20-033 Lublin, Poland;
| | - Wojciech Myśliński
- Chair and Department of Internal Diseases, Medical University of Lublin, 20-081 Lublin, Poland;
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Tan W, Chen Y, Xiong X, Huang S, Fang Z, Chen Y, Ma M, Chen B. Synthesis of a poly(sulfobetaine-co-polyhedral oligomeric silsesquioxane) hybrid monolith via an in-situ ring opening quaternization for use in hydrophilic interaction capillary liquid chromatography. Mikrochim Acta 2020; 187:109. [PMID: 31915938 DOI: 10.1007/s00604-019-4088-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 12/16/2019] [Indexed: 11/26/2022]
Abstract
An in-situ approach is described for synthesis of poly(sulfobetaine-co-polyhedral oligomeric silsesquioxane) [poly(sulfobetaine-co-POSS)] that can be used in a hybrid monolithic column as a hydrophilic liquid chromatography (HILIC) stationary phase. Synthesis involves (a) radical polymerization of octa(propyl methacrylate)-polyhedral oligomeric silsesquioxane (MA-POSS) and organic monomers such as dimethylaminopropyl methacrylate or vinyl imidazole, and (b) in-situ ring-opening quaternization between 1,4-butane sultone and the organic monomers. The sulfobetaine groups are generated in-situ monolith. This obviates the need for synthesis of sulfobetaine monomer previously. The pore size and permeability of the material can be tuned by using a binary porogenic system (polyethyleneglycol 600 and acetonitrile) and via the composition of the polymerization mixture. The optimized hybrid monolith owns its merits to the presence of POSS and sulfobetaine groups with good mechanical stability, the lack of residual silanol groups, and adequate hydrophilicity. The column filled with the monoliths was evaluated as a stationary phase for HILIC. Several kinds of polar compounds (including nucleosides, bases, phenols, aromatic acids and amides) were separated by using mobile phases with high organic solvent fractions in capillary liquid chromatography. Graphical abstractAn in-situ approach is described for synthesis of poly(sulfobetaine-co-polyhedral oligomeric silsesquioxane) hybrid monolithic column for use in hydrophilic liquid chromatography. The optimized monolith owns good mechanical stability, the lack of residual silanol groups and adequate hydrophilicity. Baseline separation of several kinds of polar compounds is achieved on the column. MA-POSS: octa(propyl-methacrylate) polyhedral oligomeric silsesquioxane; DMAEMA: dimethylaminoethyl methacrylate; AIBN: azodiisobutyronitrile. Poly(DMABS-co-POSS): poly(N-(4-sulfobutyl)-N-methacryloxypropyl- N,N-dimethylammonium-betaine-co-polyhedral oligomeric silsesquioxane).
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Affiliation(s)
- Wangming Tan
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Ye Chen
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Xiyue Xiong
- NHC Key Laboratory of Birth Defect for Research and Prevention (Hunan Provincial Maternal and Child Health Care Hospital), Changsha, 410081, China
| | - Si Huang
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Zhengfa Fang
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Yingzhuang Chen
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha, 410081, China.
| | - Ming Ma
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha, 410081, China
| | - Bo Chen
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha, 410081, China
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Applicability of a Monolithic Column for Separation of Isoquinoline Alkalodis from Chelidonium majus Extract. Molecules 2019; 24:molecules24193612. [PMID: 31591371 PMCID: PMC6804227 DOI: 10.3390/molecules24193612] [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: 09/06/2019] [Revised: 09/26/2019] [Accepted: 10/05/2019] [Indexed: 01/15/2023] Open
Abstract
Isoquinoline alkaloids are the main group of secondary metabolites present in Chelidonium majus extracts, and they are still the object of interest of many researchers. Therefore, the development of methods for the investigation and separation of the alkaloids is still an important task. In this work, the application potential of a silica-based monolithic column for the separation of alkaloids was assessed. The influence of the organic modifier, temperature, salt concentration, and pH of the eluent on basic chromatographic parameters such as retention, resolution between neighboring peaks, chromatographic plate numbers, and peak asymmetry were investigated. Based on the obtained results, a gradient elution program was developed and used to separate and quantitatively determine the main alkaloids in a Chelidonium majus root extract.
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Separation of Photosynthetic Pigments by High-performance Liquid Chromatography: Comparison of Column Performance, Mobile Phase, and Temperature. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.proche.2015.03.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Evolution of analysis of polyhenols from grapes, wines, and extracts. Molecules 2013; 18:1076-100. [PMID: 23325097 PMCID: PMC6269677 DOI: 10.3390/molecules18011076] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 01/07/2013] [Accepted: 01/14/2013] [Indexed: 11/16/2022] Open
Abstract
Grape and wine phenolics are structurally diverse, from simple molecules to oligomers and polymers usually designated as tannins. They have an important impact on the organoleptic properties of wines, that's why their analysis and quantification are of primordial importance. The extraction of phenolics from grapes and from wines is the first step involved in the analysis. Then, several analytical methods have been developed for the determination of total content of phenolic, while chromatographic and spectrophotometric analyses are continuously improved in order to achieve adequate separation of phenolic molecules, their subsequent identification and quantification. This review provides a summary of evolution of analysis of polyphenols from grapes, wines and extracts.
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Rigobello-Masini M, Penteado JCP, Masini JC. Monolithic columns in plant proteomics and metabolomics. Anal Bioanal Chem 2012; 405:2107-22. [DOI: 10.1007/s00216-012-6574-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 11/02/2012] [Accepted: 11/13/2012] [Indexed: 12/16/2022]
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8
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Isolation and structure elucidation of phenolic compounds from Cyclopia subternata Vogel (honeybush) intact plant and in vitro cultures. Food Chem 2012. [DOI: 10.1016/j.foodchem.2012.01.114] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Hlushkou D, Bruns S, Seidel-Morgenstern A, Tallarek U. Morphology-transport relationships for silica monoliths: From physical reconstruction to pore-scale simulations. J Sep Sci 2011; 34:2026-37. [DOI: 10.1002/jssc.201100158] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2011] [Revised: 04/18/2011] [Accepted: 04/18/2011] [Indexed: 11/10/2022]
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Nian R, Kim DS, Nguyen T, Tan L, Kim CW, Yoo IK, Choe WS. Chromatographic biopanning for the selection of peptides with high specificity to Pb2+ from phage displayed peptide library. J Chromatogr A 2010; 1217:5940-9. [DOI: 10.1016/j.chroma.2010.07.048] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2010] [Revised: 07/02/2010] [Accepted: 07/17/2010] [Indexed: 10/19/2022]
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11
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Liazid A, Barbero GF, Palma M, Brigui J, Barroso CG. Rapid Determination of Simple Polyphenols in Grapes by LC Using a Monolithic Column. Chromatographia 2010. [DOI: 10.1365/s10337-010-1678-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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12
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Bruns S, Müllner T, Kollmann M, Schachtner J, Höltzel A, Tallarek U. Confocal Laser Scanning Microscopy Method for Quantitative Characterization of Silica Monolith Morphology. Anal Chem 2010; 82:6569-75. [DOI: 10.1021/ac100909t] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stefan Bruns
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany, and Department of Biology, Philipps-Universität Marburg, Karl-von-Frisch-Strasse 8, 35032 Marburg, Germany
| | - Tibor Müllner
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany, and Department of Biology, Philipps-Universität Marburg, Karl-von-Frisch-Strasse 8, 35032 Marburg, Germany
| | - Martin Kollmann
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany, and Department of Biology, Philipps-Universität Marburg, Karl-von-Frisch-Strasse 8, 35032 Marburg, Germany
| | - Joachim Schachtner
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany, and Department of Biology, Philipps-Universität Marburg, Karl-von-Frisch-Strasse 8, 35032 Marburg, Germany
| | - Alexandra Höltzel
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany, and Department of Biology, Philipps-Universität Marburg, Karl-von-Frisch-Strasse 8, 35032 Marburg, Germany
| | - Ulrich Tallarek
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany, and Department of Biology, Philipps-Universität Marburg, Karl-von-Frisch-Strasse 8, 35032 Marburg, Germany
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Boccard J, Veuthey JL, Rudaz S. Knowledge discovery in metabolomics: An overview of MS data handling. J Sep Sci 2010; 33:290-304. [DOI: 10.1002/jssc.200900609] [Citation(s) in RCA: 139] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Biesaga M, Ochnik U, Pyrzynska K. Fast analysis of prominent flavonoids in tomato using a monolithic column and isocratic HPLC. J Sep Sci 2009; 32:2835-40. [PMID: 19575378 DOI: 10.1002/jssc.200800730] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
RP HPLC-UV-MS was optimized for simultaneous determination of several prominent flavonoids (quercetin, naringenin, naringin, myricetin, rutin and kaempferol) using a commercially available monolithic column and isocratic elution. The concentration of organic modifier (methanol and ACN) was tested in order to obtain the best resolution. The LODs for a UV detector at 254 nm were comprised between 0.1 microg/mL for myricetin and quercetin and 0.5 microg/mL for rutin, naringin and kaempferol with the precision in the range of 1.5-3.0% RSD. MS detection with multiply reaction monitoring (MRM) offers a considerable gain in selectivity as well as sensitivity LODs for flavonoids were in the range of 1-20 ng/mL. The developed method was used for monitoring the content of some flavonoids in tomatoes during their maturation process.
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16
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Biesaga M, Pyrzynska K. Analytical Procedures for Determination of Quercetin and its Glycosides in Plant Material. Crit Rev Anal Chem 2009. [DOI: 10.1080/10408340902820718] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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17
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Qualitative and quantitative analysis of Radix Astragali products by fast high-performance liquid chromatography-diode array detection coupled with time-of-flight mass spectrometry through dynamic adjustment of fragmentor voltage. J Chromatogr A 2008; 1203:27-35. [PMID: 18649887 DOI: 10.1016/j.chroma.2008.07.019] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2008] [Revised: 06/30/2008] [Accepted: 07/08/2008] [Indexed: 11/20/2022]
Abstract
A novel fast high-performance liquid chromatography (HPLC) method coupled with diode array detection (DAD) and time-of-flight mass spectrometry (TOF/MS) was developed for qualitative and quantitative analysis of Radix Astragali products. The potential of fast HPLC on 1.8-microm particles was compared with the performance of HPLC on conventional 5-microm particles columns. Significant advantages of fast HPLC include high-speed chromatographic separation, four times faster than HPLC with conventional columns, and great enhancement in sensitivity with limits of detection low to 0.001 ng. With dynamic adjustment of fragmentor voltage in TOF/MS, an efficient transmission of the ions was achieved to obtain the best sensitivity and abundant fragmentation. By accurate mass measurements within 5 ppm error for each molecular ion and subsequent fragment ions, a reliable identification and differentiation of six major saponins including two groups of isomers and twelve main isoflavonoids was described here for the first time. For quantitative analysis by fast HPLC-TOF/MS, linearity of response over two orders of magnitude was demonstrated (r(2)>0.99) for all analytes. Intra-day reproducibility was below 3% RSD and inter-day values were below 5% RSD. A good correlation (slope=1.1108, r(2)=0.9853) was observed for accuracy test. It is concluded that the fast and sensitive HPLC-DAD-TOF/MS is powerful in qualitative and quantitative analysis of complex herbal medicines in terms of time savings, sensitivity, selectivity, precision, accuracy as well as increasing sample throughout and lowering solvent consumption.
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Analytical strategies for LC-MS-based targeted metabolomics. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 871:236-42. [PMID: 18502704 DOI: 10.1016/j.jchromb.2008.04.031] [Citation(s) in RCA: 319] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2008] [Revised: 04/14/2008] [Accepted: 04/22/2008] [Indexed: 11/20/2022]
Abstract
Recent advances in mass spectrometry are enabling improved analysis of endogenous metabolites. Here we discuss several issues relevant to developing liquid chromatography-electrospray ionization-mass spectrometry methods for targeted metabolomics (i.e., quantitative analysis of dozens to hundreds of specific metabolites). Sample preparation and liquid chromatography approaches are discussed, with an eye towards the challenge of dealing with a diversity of metabolite classes in parallel. Evidence is presented that heated electrospray ionization (ESI) generally gives improved signal compared to the more traditional unheated ESI. Applicability to targeted metabolomics of triple quadrupole mass spectrometry operating in multiple reaction monitoring (MRM) mode and high mass resolution full scan mass spectrometry (e.g., time-of-flight, Orbitrap) are described. We suggest that both are viable solutions, with MRM preferred when targeting a more limited number of analytes, and full scan preferred for its potential ability to bridge targeted and untargeted metabolomics.
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Grata E, Boccard J, Guillarme D, Glauser G, Carrupt PA, Farmer EE, Wolfender JL, Rudaz S. UPLC-TOF-MS for plant metabolomics: a sequential approach for wound marker analysis in Arabidopsis thaliana. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 871:261-70. [PMID: 18467195 DOI: 10.1016/j.jchromb.2008.04.021] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2008] [Revised: 03/28/2008] [Accepted: 04/15/2008] [Indexed: 12/21/2022]
Abstract
The model plant Arabidopsis thaliana was studied for the search of new metabolites involved in wound signalling. Diverse LC approaches were considered in terms of efficiency and analysis time and a 7-min gradient on a UPLC-TOF-MS system with a short column was chosen for metabolite fingerprinting. This screening step was designed to allow the comparison of a high number of samples over a wide range of time points after stress induction in positive and negative ionisation modes. Thanks to data treatment, clear discrimination was obtained, providing lists of potential stress-induced ions. In a second step, the fingerprinting conditions were transferred to longer column, providing a higher peak capacity able to demonstrate the presence of isomers among the highlighted compounds.
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Affiliation(s)
- Elia Grata
- Laboratory of Pharmaceutical Analytical Chemistry, School of Pharmaceutical Sciences, EPGL, University of Geneva, Geneva, Switzerland
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Wu R, Hu L, Wang F, Ye M, Zou H. Recent development of monolithic stationary phases with emphasis on microscale chromatographic separation. J Chromatogr A 2008; 1184:369-92. [DOI: 10.1016/j.chroma.2007.09.022] [Citation(s) in RCA: 232] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2007] [Revised: 09/06/2007] [Accepted: 09/11/2007] [Indexed: 12/28/2022]
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21
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Dunn WB. Current trends and future requirements for the mass spectrometric investigation of microbial, mammalian and plant metabolomes. Phys Biol 2008; 5:011001. [DOI: 10.1088/1478-3975/5/1/011001] [Citation(s) in RCA: 202] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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22
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Biesaga M, Ochnik U, Pyrzynska K. Analysis of phenolic acids in fruits by HPLC with monolithic columns. J Sep Sci 2008; 30:2929-34. [PMID: 17960844 DOI: 10.1002/jssc.200700247] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Reversed-phase HPLC was optimised for simultaneous determination of several derivatives of benzoic and hydroxycinnamic acids (so-called phenolic acids) in plums using a commercially available monolithic column. Mobile phase pH and concentration of organic modifier (methanol and acetonitrile) were tested in order to obtain the best resolution. Satisfactory separation was achieved in gradient mode with a mobile phase consisting of 50 mM phosphate buffer at pH 2.2 (solvent A) and acetonitrile (solvent B). The limits of detection for a UV detector ranged between 0.098 and 2.04 microg/mL for vanillic acid and p-hydroxyphenylacetic acid, respectively. The developed method was used for monitoring the content of polyphenolic acids in plums during their ripening process. The presence of these constituents was confirmed by checking their MS spectra.
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Li P, Qi LW, Liu EH, Zhou JL, Wen XD. Analysis of Chinese herbal medicines with holistic approaches and integrated evaluation models. Trends Analyt Chem 2008. [DOI: 10.1016/j.trac.2007.11.005] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Guiochon G. Monolithic columns in high-performance liquid chromatography. J Chromatogr A 2007; 1168:101-68; discussion 100. [PMID: 17640660 DOI: 10.1016/j.chroma.2007.05.090] [Citation(s) in RCA: 618] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2006] [Revised: 05/17/2007] [Accepted: 05/29/2007] [Indexed: 10/23/2022]
Abstract
Monolithic media have been used for various niche applications in gas or liquid chromatography for a long time. Only recently did they acquire a major importance in high-performance column liquid chromatography (HPLC). The advent of monolithic silica standard- and narrow-bore columns and of several families of polymer-based monolithic columns has considerably changed the HPLC field, particularly in the area of narrow-bore columns. The origin of the concept, the differences between their characteristics and those of traditional packed columns, their advantages and drawbacks, the methods of preparation of monoliths of different forms, and the current status of the field are reviewed. The actual and potential performance of monolithic columns are compared with those of packed columns. Monolithic columns have considerable advantages, which makes them most useful in many applications of liquid chromatography. They are extremely permeable and offer a high efficiency that decreases slowly with increasing flow velocity.
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Affiliation(s)
- Georges Guiochon
- Department of Chemistry, University of Tennessee, Knoxville, TN 37996-1600, USA.
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Pellati F, Calò S, Benvenuti S. High-performance liquid chromatography analysis of polyacetylenes and polyenes in Echinacea pallida by using a monolithic reversed-phase silica column. J Chromatogr A 2007; 1149:56-65. [DOI: 10.1016/j.chroma.2006.11.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2006] [Revised: 11/06/2006] [Accepted: 11/14/2006] [Indexed: 10/23/2022]
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Rostagno MA, Palma M, Barroso CG. Fast analysis of soy isoflavones by high-performance liquid chromatography with monolithic columns. Anal Chim Acta 2007; 582:243-9. [PMID: 17386499 DOI: 10.1016/j.aca.2006.08.065] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2006] [Revised: 08/20/2006] [Accepted: 08/24/2006] [Indexed: 11/26/2022]
Abstract
A fast method using high-performance liquid chromatography based on two monolithic columns has been developed for the simultaneous determination of isoflavones extracted from soybeans and derived foods. The 12 main isoflavones were resolved in 10 min in two coupled monolithic columns working at 35 degrees C using a elution gradient of acidified water (0.1% acetic acid) and methanol (0.1% acetic acid) at a flow rate of 5 mL min(-1). Retention time and relative area standard deviations were below 1% for all isoflavones. The method developed was successfully applied to several soy food samples and spiked samples. Total isoflavone concentration in sampled soy foods ranged from 34.28 mg L(-1) to 4.29 mg g(-1).
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Affiliation(s)
- Mauricio A Rostagno
- Departamento de Química Analitica, Facultad de Ciencias, Universidad de Cádiz, Puerto Real, Cádiz, Spain
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