1
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Kostyukevich Y, Osipenko S, Borisova L, Kireev A. In-Electrospray source Hydrogen/Deuterium exchange coupled to multistage fragmentation for the investigation of the protonation and fragmentation pathways of gas phase ions. JOURNAL OF MASS SPECTROMETRY : JMS 2024; 59:e5032. [PMID: 38736146 DOI: 10.1002/jms.5032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 04/02/2024] [Indexed: 05/14/2024]
Abstract
Identification of molecules in complex natural matrices relies on matching the fragmentation spectra of ions under investigation and the spectra acquired for the corresponding analytical standards. Currently, there are many databases of experimentally measured tandem mass spectrometry spectra (such as NIST, MzCloud, and Metlin), and considerable progress has been made in the development of software for predicting tandem mass spectrometry fragments in silico using combinatorial, machine learning, and quantum chemistry approaches (such as MetFrag, CFM-ID, and QCxMS). However, the electrospray ionization molecules can be ionized at different sites (protonated or deprotonated), and the fragmentation spectra of such ions are different. Here, we are using the combination of the in-ESI source hydrogen/deuterium exchange reaction and MSn fragmentation for the investigation of the fragmentation pathways for different protomers of organic molecules. It is shown that the distribution of the deuterium in the fragment ions reflects the presence of different protomers. For several molecules, the distribution of deuterium was traced up to the MS5 level of fragmentation revealing many unusual and unexpected effects. For example, we investigated the loss of HF from the ciprofloxacin and norfloxacin ions and observed that for ions protonated at -COOH group, the eliminating hydrogen always comes from -NH group. When ions are protonated at another site, the elimination of hydrogen with a probability of 30% occurs from the -NH group, and with a probability of 70%, it originates from other sites on the molecule. Such effects were not described previously. Quantum chemical simulation was used for the verification of the protonated structures and simulation of the corresponding fragmentation spectra.
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Affiliation(s)
| | - Sergey Osipenko
- Skolkovo Institute of Science and Technology, Moscow, Russia
| | | | - Albert Kireev
- Skolkovo Institute of Science and Technology, Moscow, Russia
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2
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de Aguiar DA, Roque JV, de Lima LAS, Junior IM, Gomes HO, de Sousa ENR, Piccoli GPL, Vaz BG. Chemometric Analysis Combined with GC × GC-FID and ESI HR-MS to Evaluate Ultralow-Sulfur Diesel Stability. ACS OMEGA 2024; 9:10415-10425. [PMID: 38463272 PMCID: PMC10918789 DOI: 10.1021/acsomega.3c08336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/22/2023] [Accepted: 02/09/2024] [Indexed: 03/12/2024]
Abstract
Diesel has been the most employed fuel in highway and nonhighway transportation systems. Many studies over the past years have attempted to classify diesel as a stable or unstable composition since this fuel can still degrade during storage or thermal oxidative processes. Products generated because of such degradation are the reason for the formation of soluble gums and insoluble organic particulates, which in turn cause a negative influence on engine performance. This work reports a detailed composition of nonpolar and polar compounds in many ultralow-sulfur diesel (ULSD) samples by comprehensive two-dimensional gas chromatography with a flame ionization detector (GC × GC-FID) and electrospray ionization high-resolution mass spectrometry (ESI HR-MS). In addition, chemometric approaches were applied for ULSD storage stability investigation. GC × GC-FID experiments achieved the nonpolar chemical characterization for the ULSD samples, including all main hydrocarbon classes: paraffins, mono- and dinaphthenics and olefins, and aromatics. The GC × GC-FID data combined with principal component analysis (PCA) described that the separation of the samples' concerning storage stability was mainly due to the contents of mono- and diaromatic compounds in the unstable ULSD samples. Moreover, PCA was also applied to the ESI (±) data set, and the results highlight the presence of compounds belonging to O class (natural antioxidants), which decrease the rate of oxygen consumption in the fuel, characterizing it as stable composition. The basic nitrogen compounds are mostly present in the stable ULSD samples indicating that they did not affect the stability of the fuel. On the other hand, the HC classes presented pronounced abundance among unstable ULSD samples suggesting that the fuel degradation may go through the oxidation of hydrocarbons and the formation of Ox compounds as byproducts. Furthermore, MS/MS experiments point to the formation of CcHhNnOo-like precursor species, which can react with each other and lead to the formation of gums and insoluble sediments in the fuel. In summary, the results express the potential of using the GC × GC-FID and ESI (±) Orbitrap MS techniques as valuable tools for diesel stability evaluations.
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Affiliation(s)
- Deborah
V. A. de Aguiar
- Laboratory
of Chromatography and Mass Spectrometry, Institute of Chemistry, Federal University of Goiás, Goiânia, Goiânia 74001-970, Brazil
| | - Jussara V. Roque
- Laboratory
of Chromatography and Mass Spectrometry, Institute of Chemistry, Federal University of Goiás, Goiânia, Goiânia 74001-970, Brazil
| | - Leomir A. S. de Lima
- Laboratory
of Chromatography and Mass Spectrometry, Institute of Chemistry, Federal University of Goiás, Goiânia, Goiânia 74001-970, Brazil
| | - Iris M. Junior
- CENPES,
PETROBRAS, Rio de
Janeiro, Rio de Janeiro 21941-915, Brazil
| | | | | | | | - Boniek G. Vaz
- Laboratory
of Chromatography and Mass Spectrometry, Institute of Chemistry, Federal University of Goiás, Goiânia, Goiânia 74001-970, Brazil
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3
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Damont A, Legrand A, Cao C, Fenaille F, Tabet JC. Hydrogen/deuterium exchange mass spectrometry in the world of small molecules. MASS SPECTROMETRY REVIEWS 2023; 42:1300-1331. [PMID: 34859466 DOI: 10.1002/mas.21765] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 11/19/2021] [Accepted: 11/19/2021] [Indexed: 06/07/2023]
Abstract
The combined use of hydrogen/deuterium exchange (HDX) and mass spectrometry (MS), referred to as HDX-MS, is a powerful tool for exploring molecular edifices and has been used for over 60 years. Initially for structural and mechanistic investigation of low-molecular weight organic compounds, then to study protein structure and dynamics, then, the craze to study small molecules by HDX-MS accelerated and has not stopped yet. The purpose of this review is to present its different facets with particular emphasis on recent developments and applications. Reversible H/D exchanges of mobilizable protons as well as stable exchanges of non-labile hydrogen are considered whether they are taking place in solution or in the gas phase, or enzymatically in a biological media. Some fundamental principles are restated, especially for gas-phase processes, and an overview of recent applications, ranging from identification to quantification through the study of metabolic pathways, is given.
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Affiliation(s)
- Annelaure Damont
- Département Médicaments et Technologies pour la Santé (DMTS), MetaboHUB, Université Paris-Saclay, CEA, INRAE, Gif-sur-Yvette, France
| | - Anaïs Legrand
- Département Médicaments et Technologies pour la Santé (DMTS), MetaboHUB, Université Paris-Saclay, CEA, INRAE, Gif-sur-Yvette, France
| | - Chenqin Cao
- Département Médicaments et Technologies pour la Santé (DMTS), MetaboHUB, Université Paris-Saclay, CEA, INRAE, Gif-sur-Yvette, France
| | - François Fenaille
- Département Médicaments et Technologies pour la Santé (DMTS), MetaboHUB, Université Paris-Saclay, CEA, INRAE, Gif-sur-Yvette, France
| | - Jean-Claude Tabet
- Département Médicaments et Technologies pour la Santé (DMTS), MetaboHUB, Université Paris-Saclay, CEA, INRAE, Gif-sur-Yvette, France
- Faculté des Sciences et de l'Ingénierie, Institut Parisien de Chimie Moléculaire (IPCM), Sorbonne Université, Paris, France
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4
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Acter T, Lee S, Uddin N, Mow KM, Kim S. Characterization of petroleum‐related natural organic matter by ultrahigh‐resolution mass spectrometry. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Thamina Acter
- Department of Mathematical and Physical Sciences East West University Dhaka Bangladesh
| | - Seulgidaun Lee
- Department of Chemistry Kyungpook National University Daegu Republic of Korea
| | - Nizam Uddin
- Department of Nutrition and Food Engineering, Faculty of Allied Health Science Daffodil International University Dhaka Bangladesh
| | - Kamarum Monira Mow
- Department of Computer Science and Engineering East West University Dhaka Bangladesh
| | - Sunghwan Kim
- Department of Chemistry Kyungpook National University Daegu Republic of Korea
- Mass Spectrometry Based Convergence Research Institute Kyungpook National University Daegu Republic of Korea
- Green‐Nano Materials Research Center, Kyungpook National University Daegu Republic of Korea
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5
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Next Challenges for the Comprehensive Molecular Characterization of Complex Organic Mixtures in the Field of Sustainable Energy. Molecules 2022; 27:molecules27248889. [PMID: 36558021 PMCID: PMC9786309 DOI: 10.3390/molecules27248889] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/06/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022] Open
Abstract
The conversion of lignocellulosic biomass by pyrolysis or hydrothermal liquefaction gives access to a wide variety of molecules that can be used as fuel or as building blocks in the chemical industry. For such purposes, it is necessary to obtain their detailed chemical composition to adapt the conversion process, including the upgrading steps. Petroleomics has emerged as an integral approach to cover a missing link in the investigation bio-oils and linked products. It relies on ultra-high-resolution mass spectrometry to attempt to unravel the contribution of many compounds in complex samples by a non-targeted approach. The most recent developments in petroleomics partially alter the discriminating nature of the non-targeted analyses. However, a peak referring to one chemical formula possibly hides a forest of isomeric compounds, which may present a large chemical diversity concerning the nature of the chemical functions. This identification of chemical functions is essential in the context of the upgrading of bio-oils. The latest developments dedicated to this analytical challenge will be reviewed and discussed, particularly by integrating ion source features and incorporating new steps in the analytical workflow. The representativeness of the data obtained by the petroleomic approach is still an important issue.
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6
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Kostyukevich Y, Sosnin S, Osipenko S, Kovaleva O, Rumiantseva L, Kireev A, Zherebker A, Fedorov M, Nikolaev EN. PyFragMS-A Web Tool for the Investigation of the Collision-Induced Fragmentation Pathways. ACS OMEGA 2022; 7:9710-9719. [PMID: 35350354 PMCID: PMC8945079 DOI: 10.1021/acsomega.1c07272] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 02/28/2022] [Indexed: 05/13/2023]
Abstract
Dissociation induced by the accumulation of internal energy via collisions of ions with neutral molecules is one of the most important fragmentation techniques in mass spectrometry (MS), and the identification of small singly charged molecules is based mainly on the consideration of the fragmentation spectrum. Many research studies have been dedicated to the creation of databases of experimentally measured tandem mass spectrometry (MS/MS) spectra (such as MzCloud, Metlin, etc.) and developing software for predicting MS/MS fragments in silico from the molecular structure (such as MetFrag, CFM-ID, CSI:FingerID, etc.). However, the fragmentation mechanisms and pathways are still not fully understood. One of the limiting obstacles is that protomers (positive ions protonated at different sites) produce different fragmentation spectra, and these spectra overlap in the case of the presence of different protomers. Here, we are proposing to use a combination of two powerful approaches: computing fragmentation trees that carry information of all consecutive fragmentations and consideration of the MS/MS data of isotopically labeled compounds. We have created PyFragMS-a web tool consisting of a database of annotated MS/MS spectra of isotopically labeled molecules (after H/D and/or 16O/18O exchange) and a collection of instruments for computing fragmentation trees for an arbitrary molecule. Using PyFragMS, we investigated how the site of protonation influences the fragmentation pathway for small molecules. Also, PyFragMS offers capabilities for performing database search when MS/MS data of the isotopically labeled compounds are taken into account.
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7
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Thomas MJ, Chan HYH, Palacio Lozano DC, Barrow MP. Solvent and Flow Rate Effects on the Observed Compositional Profiles and the Relative Intensities of Radical and Protonated Species in Atmospheric Pressure Photoionization Mass Spectrometry. Anal Chem 2022; 94:4954-4960. [PMID: 35286808 PMCID: PMC8969439 DOI: 10.1021/acs.analchem.1c03463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Sample preparation and instrument parameters have regularly been demonstrated to impact upon the observed results in atmospheric pressure photoionization, mass spectrometry (MS), and analytical techniques in general but may be overlooked when such methods are applied to the characterization of real-world samples. An initial investigation into different solvent systems demonstrated that the inclusion of ethyl acetate inverted the ratio of relative intensities of radical and protonated species (R/P). Design of experiments was performed and indicated that the injection flow rate is also a significant factor. The impact of the solvent system and flow rate on signal intensity, the observed compositional profile, and R/P of selected molecular groups is demonstrated further. An inversion of R/P is observed at higher flow rates in solvent systems commonly used in petroleomics studies, effecting a loss of molecular speciation. The findings presented reiterate the critical importance in considering experimental parameters when interpreting the results of analytical procedures.
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Affiliation(s)
- Mary J Thomas
- Molecular Analytical Sciences Centre for Doctoral Training, University of Warwick, Coventry CV4 7AL, England.,Department of Chemistry, University of Warwick, Coventry CV4 7AL, England
| | - Ho Yi Holly Chan
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, England
| | | | - Mark P Barrow
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, England
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8
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Kim S, Kim D, Jung MJ, Kim S. Analysis of environmental organic matters by Ultrahigh-Resolution mass spectrometry-A review on the development of analytical methods. MASS SPECTROMETRY REVIEWS 2022; 41:352-369. [PMID: 33491249 DOI: 10.1002/mas.21684] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 09/10/2020] [Accepted: 09/10/2020] [Indexed: 06/12/2023]
Abstract
Owing to the increasing environmental and climate changes globally, there is an increasing interest in the molecular-level understanding of environmental organic compound mixtures, that is, the pursuit of complete and detailed knowledge of the chemical compositions and related chemical reactions. Environmental organic molecule mixtures, including those in air, soil, rivers, and oceans, have extremely complex and heterogeneous chemical compositions. For their analyses, ultrahigh-resolution and sub-ppb level mass accuracy, achievable using Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS), are important. FT-ICR MS has been successfully used to analyze complex environmental organic molecule mixtures such as natural, soil, particulate, and dissolved organic matter. Despite its success, many limitations still need to be overcome. Sample preparation, ionization, structural identification, chromatographic separation, and data interpretation are some key areas that have been the focus of numerous studies. This review describes key developments in analytical techniques in these areas to aid researchers seeking to start or continue investigations for the molecular-level understanding of environmental organic compound mixtures.
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Affiliation(s)
- Sungjune Kim
- Department of Chemistry, Kyungpook National University, Daegu, Korea
| | - Donghwi Kim
- Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje, Korea
| | - Maeng-Joon Jung
- Department of Chemistry, Kyungpook National University, Daegu, Korea
| | - Sunghwan Kim
- Department of Chemistry, Kyungpook National University, Daegu, Korea
- Mass Spectrometry Convergence Research Center and Green-Nano Materials Research Center, Daegu, Korea
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9
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Ray AD, Clemens G, Holman SW. Application of open port sampling interface mass spectrometry (OPSI-MS) to deuterium exchange as an aid for structural elucidation. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35 Suppl 2:e8536. [PMID: 31336014 DOI: 10.1002/rcm.8536] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 06/19/2019] [Accepted: 07/16/2019] [Indexed: 06/10/2023]
Abstract
RATIONALE Deuterium exchange has been demonstrated to provide additional information to accurate mass measurement and collision-induced dissociation on unknown chemical structures. An enhanced method for rapid deuterium exchange could make this technique more routine for structural elucidation. Open port sampling interface mass spectrometry (OPSI-MS) with an aprotic solvent offers a rapid method for performing deuterium incorporation. METHODS Samples of standard drug molecules have been analysed by OPSI-MS directly from solids using a make-up flow of acetonitrile + 0.1% trifluoroacetic acid. The resultant spectra were compared with those obtained by OPSI-MS analysis of the samples dissolved in deuterium oxide (D2 O). Solutions of these molecules in acetonitrile/D2 O were analysed using an Atmospheric Solids Analysis Probe (ASAP) at different temperatures to compare the suitability of this technique. RESULTS The number of exchangeable hydrogens was obtained through deuterium exchange using the OPSI source, although there was some incomplete exchange or back-exchange observed. Molecules with one to five exchangeable hydrogens were successfully analysed. ASAP analysis produced more complicated spectra with higher levels of incomplete or back-exchanged ions; this was more pronounced at higher temperatures. CONCLUSIONS The use of OPSI provides a method for the rapid determination of the number of exchangeable hydrogens within a molecule. This yields useful information as an aid to the structural elucidation of unknowns. ASAP produces incomplete exchange and cannot be used for incorporation studies.
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Affiliation(s)
- Andrew D Ray
- Global Product Development, Pharmaceutical Technology & Development, AstraZeneca, Macclesfield Campus, Macclesfield, SK10 2NA, UK
| | - Graeme Clemens
- Chemical Development, Pharmaceutical Technology & Development, AstraZeneca, Macclesfield Campus, Macclesfield, SK10 2NA, UK
| | - Stephen W Holman
- Chemical Development, Pharmaceutical Technology & Development, AstraZeneca, Macclesfield Campus, Macclesfield, SK10 2NA, UK
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10
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Zherebker A, Kostyukevich Y, Volkov DS, Chumakov RG, Friederici L, Rüger CP, Kononikhin A, Kharybin O, Korochantsev A, Zimmermann R, Perminova IV, Nikolaev E. Speciation of organosulfur compounds in carbonaceous chondrites. Sci Rep 2021; 11:7410. [PMID: 33795703 PMCID: PMC8016918 DOI: 10.1038/s41598-021-86576-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 03/17/2021] [Indexed: 11/17/2022] Open
Abstract
Despite broad application of different analytical techniques for studies on organic matter of chondrite meteorites, information about composition and structure of individual compounds is still very limited due to extreme molecular diversity of extraterrestrial organic matter. Here we present the first application of isotopic exchange assisted Fourier transform ion cyclotron resonance mass spectrometry (FTICR MS) for analysis of alkali extractable fraction of insoluble organic matter (IOM) of the Murchison and Allende meteorites. This allowed us to determine the individual S-containing ions with different types of sulfur atoms in IOM. Thiols, thiophenes, sulfoxides, sulfonyls and sulfonates were identified in both samples but with different proportions, which contribution corroborated with the hydrothermal and thermal history of the meteorites. The results were supported by XPS and thermogravimetric analysis coupled to FTICR MS. The latter was applied for the first time for analysis of chondritic IOM. To emphasize the peculiar extraterrestrial origin of IOM we have compared it with coal kerogen, which is characterized by the comparable complexity of molecular composition but its aromatic nature and low oxygen content can be ascribed almost exclusively to degradation of biomacromolecules.
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Affiliation(s)
- Alexander Zherebker
- Skolkovo Institute of Science and Technology, Skolkovo, Moscow region, Russia, 143025
| | - Yury Kostyukevich
- Skolkovo Institute of Science and Technology, Skolkovo, Moscow region, Russia, 143025
| | - Dmitry S Volkov
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | | | - Lukas Friederici
- Joint Mass Spectrometry Centre, Chair of Analytical Chemistry, University of Rostock, 18059, Rostock, Germany
| | - Christopher P Rüger
- Joint Mass Spectrometry Centre, Chair of Analytical Chemistry, University of Rostock, 18059, Rostock, Germany
| | - Alexey Kononikhin
- Skolkovo Institute of Science and Technology, Skolkovo, Moscow region, Russia, 143025.,V.L. Talrose Institute for Energy Problems of Chemical Physics, N.N. Semenov Federal Center of Chemical Physic, Russian Academy of Sciences, Moscow, Russia
| | - Oleg Kharybin
- Skolkovo Institute of Science and Technology, Skolkovo, Moscow region, Russia, 143025
| | - Alexander Korochantsev
- Vernadsky Institute of Geochemistry and Analytical Chemistry of Russian Academy of Sciences, Kosygina 19, Moscow, Russia, 119334
| | - Ralf Zimmermann
- Joint Mass Spectrometry Centre, Chair of Analytical Chemistry, University of Rostock, 18059, Rostock, Germany.,Joint Mass Spectrometry Centre of Helmholtz Zentrum München, 85764, Neuherberg, Germany
| | - Irina V Perminova
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia.
| | - Eugene Nikolaev
- Skolkovo Institute of Science and Technology, Skolkovo, Moscow region, Russia, 143025.
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11
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Zhang Y, Chen X, Zhang L, Shi Q, Zhao S, Xu C. Specification of the nitrogen functional group in a hydrotreated petroleum molecule using hydrogen/deuterium exchange electrospray ionization high-resolution mass spectrometry. Analyst 2020; 145:4442-4451. [PMID: 32529999 DOI: 10.1039/d0an00772b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrotreatment is extensively used for the production of clean fuel. Attaining an understanding of the structural conversion of the nitrogen species during hydrotreatment is very challenging due to the compositional complexity and the absence of a proper characterization method. In the presented work, we coupled hydrogen/deuterium exchange (HDX) with positive-ion electrospray ionization high-resolution mass spectrometry ((+) ESI HR MS) to investigate the difference between the composition of the nitrogen-containing species and the functional groups before and after hydrotreatment. The solvent and additive were optimized for HDX (+) ESI HRMS through systematic evaluations on model nitrogen-containing compounds. We found that adding deuterated water (D2O) and deuterated formic acid (DCOOD) significantly increased the degree of HDX and thus facilitated the identification of nitrogen functional groups. After application to the hydrotreated petroleum samples, the compositional variation of intermediate amine compounds during the heavy petroleum hydrotreatment process was clearly revealed.
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Affiliation(s)
- Ying Zhang
- State Key Laboratory of Heavy Oil Processing & Petroleum Molecular Engineering Center (PMEC), China University of Petroleum, Beijing 102249, China.
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12
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Speciation of structural fragments in crude oil by means of isotope exchange in near-critical water and Fourier transform mass spectrometry. Anal Bioanal Chem 2019; 411:3331-3339. [DOI: 10.1007/s00216-019-01802-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 02/19/2019] [Accepted: 03/22/2019] [Indexed: 10/26/2022]
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13
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Lim D, Park Y, Chang R, Ahmed A, Kim S. Application of molecular dynamics simulation to improve the theoretical prediction for collisional cross section of aromatic compounds with long alkyl chains in crude oils. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2019; 33:650-656. [PMID: 30710409 DOI: 10.1002/rcm.8400] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 01/21/2019] [Accepted: 01/23/2019] [Indexed: 06/09/2023]
Abstract
RATIONALE Molecular dynamics (MD) simulations with finite temperature were performed to improve the theoretical prediction of collisional cross section (CCS) values, especially for aromatic compounds containing long alkyl chains. METHODS In this study, the CCS values of 11 aromatic compounds with long alkyl chains were calculated by MD simulations while considering internal energy at 300, 500, and 700 K, and the results were compared with experimentally determined values. RESULTS The CCS values calculated at higher energies showed better agreement with the experimental values. Polycyclic aromatic hydrocarbons (PAHs) such as pentacene and benz[b]anthracene were also investigated, and better agreement between the theoretical and experimental results was observed when higher temperature (or higher internal energy) was considered. CONCLUSIONS The data presented in this study show that the internal degrees of freedom of ions must be considered to accurately predict the CCS values of aromatic compounds with a flexible structure measured by ion mobility mass spectrometry.
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Affiliation(s)
- Dongwan Lim
- Department of Chemistry, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Yunjae Park
- Department of Chemistry, Kwangwoon University, Seoul, 01897, Republic of Korea
| | - Rakwoo Chang
- Department of Chemistry, Kwangwoon University, Seoul, 01897, Republic of Korea
| | - Arif Ahmed
- Department of Chemistry, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Sunghwan Kim
- Department of Chemistry, Kyungpook National University, Daegu, 41566, Republic of Korea
- Green Nano Center, Department of Chemistry, Daegu, 41566, Republic of Korea
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14
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Kostyukevich Y, Vlaskin M, Zherebker A, Grigorenko A, Borisova L, Nikolaev E. High-Resolution Mass Spectrometry Study of the Bio-Oil Samples Produced by Thermal Liquefaction of Microalgae in Different Solvents. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:605-614. [PMID: 30761476 DOI: 10.1007/s13361-018-02128-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 12/03/2018] [Accepted: 12/18/2018] [Indexed: 06/09/2023]
Abstract
We have performed a comparative analysis of the bio-oil produced by thermal liquefaction of microalgae in different solvents using high-resolution Orbitrap mass spectrometry and GC-MS approach. Water, methanol, ethanol, butanol, isopropanol, acetonitrile, toluene, and hexane were used as solvents in which the liquefaction was performed. It was observed that all resulting oils demonstrate a considerable degree of similarity. For all samples, compounds containing 1 and 2 nitrogen atoms dominated in the positive ESI spectra, while a relative contribution of other compounds was small. In negative ESI mode, compounds having 2 to 7 oxygens were observed. Statistical analysis revealed that products can be combined in two groups depending on the solvent used for the liquefaction. To the first group, we can attribute the products obtained by using protic (alcohols) and to the second by using aprotic (acetonitrile, toluene) solvents. Nevertheless, based on our results, we concluded that solvent possesses a minor impact on molecular composition of bio-oil. We suggested that the driving force of the liquefaction reaction is the thermal dehydration of the carbohydrate in algae, resulting in water formation, which could be the trigger of the producing of bio-oil. To prove this hypothesis, we performed the reaction with the dry algae in the absence of the solvent and observed the formation of bio-oil. Graphical Abstract.
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Affiliation(s)
- Yury Kostyukevich
- Skolkovo Institute of Science and Technology, Novaya St. 100, Skolkovo, Moscow, 143025, Russia
- Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Leninskij pr. 38 k.2, Moscow, 119334, Russia
- Moscow Institute of Physics and Technology, Dolgoprudnyi, Moscow Region, 141700, Russia
| | - Mihail Vlaskin
- Joint Institute for High Temperatures (JIHT) of Russian Academy of Sciences, Izhorskaya st. 13 Bd.2, Moscow, 125412, Russia
| | - Alexander Zherebker
- Skolkovo Institute of Science and Technology, Novaya St. 100, Skolkovo, Moscow, 143025, Russia
- Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Leninskij pr. 38 k.2, Moscow, 119334, Russia
| | - Anatoly Grigorenko
- Joint Institute for High Temperatures (JIHT) of Russian Academy of Sciences, Izhorskaya st. 13 Bd.2, Moscow, 125412, Russia
| | - Ludmila Borisova
- National Research University Higher School of Economics, 20 Miasnitskaya Ulitsa, Moscow, 101000, Russia
| | - Eugene Nikolaev
- Skolkovo Institute of Science and Technology, Novaya St. 100, Skolkovo, Moscow, 143025, Russia.
- Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Leninskij pr. 38 k.2, Moscow, 119334, Russia.
- Moscow Institute of Physics and Technology, Dolgoprudnyi, Moscow Region, 141700, Russia.
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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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16
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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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Zhang G, Yang C, Serhan M, Koivu G, Yang Z, Hollebone B, Lambert P, Brown CE. Characterization of Nitrogen-Containing Polycyclic Aromatic Heterocycles in Crude Oils and Refined Petroleum Products. ADVANCES IN MARINE BIOLOGY 2018; 81:59-96. [PMID: 30471659 DOI: 10.1016/bs.amb.2018.09.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A large amount of polycyclic aromatic hydrocarbons (PAHs) and their heterocyclic analogues (N, S, O) are released to the marine environment from natural oil seeps, oil spills, bilge discharges and input of land-based sources. Many of these compounds are toxic and have a deleterious effect on marine biota. Nitrogen-containing compounds in crude oils are typically present as cyclic compounds such as polycyclic aromatic nitrogen heterocycles (PANHs) and are generally classified into the two categories of nonbasic (N-PANHs) and basic compounds (B-PANHs). Chromatographic analyses of PANHs are easily to be interfered by other oil components without proper sample preparation prior to instrumental analysis. In this work, dual solid phase extraction columns of 3-(isocyanato)propyl-functionalized silica gel (Si-NCO) and silica gel were employed to efficiently separate both N-PANHs and B-PANHs from saturated and aromatic petroleum hydrocarbons, which enable simultaneous accurate analyses of these groups with single sample preparation. Crude oils studied contain various concentrations of N-PANHs including carbazole, benzocarbazole and B-PANHs including quinolone, acridine and benzoacridine as well as their alkylated homologues. These compounds in light fuel and lubricating oil are generally not detected or are only in trace concentration, but have considerable abundance in heavy fuel oils. Crude oils from different sources and various petroleum products have their unique absolute concentrations and relative distribution patterns of PANHs. Chemical fingerprints of PANHs can provide valuable information for forensic oil spill identification and improve the understanding of the fate, behaviour and chemical degradation of spilled crude oil.
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Affiliation(s)
- Gong Zhang
- Emergencies Science and Technology Section, Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON, Canada
| | - Chun Yang
- Emergencies Science and Technology Section, Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON, Canada.
| | - Mariam Serhan
- Emergencies Science and Technology Section, Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON, Canada
| | - Graeme Koivu
- Emergencies Science and Technology Section, Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON, Canada
| | - Zeyu Yang
- Emergencies Science and Technology Section, Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON, Canada
| | - Bruce Hollebone
- Emergencies Science and Technology Section, Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON, Canada
| | - Patrick Lambert
- Emergencies Science and Technology Section, Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON, Canada
| | - Carl E Brown
- Emergencies Science and Technology Section, Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON, Canada
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Kostyukevich Y, Acter T, Zherebker A, Ahmed A, Kim S, Nikolaev E. Hydrogen/deuterium exchange in mass spectrometry. MASS SPECTROMETRY REVIEWS 2018; 37:811-853. [PMID: 29603316 DOI: 10.1002/mas.21565] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 02/22/2018] [Accepted: 03/08/2018] [Indexed: 05/22/2023]
Abstract
The isotopic exchange approach is in use since the first observation of such reactions in 1933 by Lewis. This approach allows the investigation of the pathways of chemical and biochemical reactions, determination of structure, composition, and conformation of molecules. Mass spectrometry has now become one of the most important analytical tools for the monitoring of the isotopic exchange reactions. Investigation of conformational dynamics of proteins, quantitative measurements, obtaining chemical, and structural information about individual compounds of the complex natural mixtures are mainly based on the use of isotope exchange in combination with high resolution mass spectrometry. The most important reaction is the Hydrogen/Deuterium exchange, which is mainly performed in the solution. Recently we have developed the approach allowing performing of the Hydrogen/Deuterium reaction on-line directly in the ionization source under atmospheric pressure. Such approach simplifies the sample preparation and can accelerate the exchange reaction so that certain hydrogens that are considered as non-labile will also participate in the exchange. The use of in-ionization source H/D exchange in modern mass spectrometry for structural elucidation of molecules serves as the basic theme in this review. We will focus on the mechanisms of the isotopic exchange reactions and on the application of in-ESI, in-APCI, and in-APPI source Hydrogen/Deuterium exchange for the investigation of petroleum, natural organic matter, oligosaccharides, and proteins including protein-protein complexes. The simple scenario for adaptation of H/D exchange reactions into mass spectrometric method is also highlighted along with a couple of examples collected from previous studies.
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Affiliation(s)
- Yury Kostyukevich
- Skolkovo Institute of Science and Technology, Skolkovo, Russian Federation
- Institute for Energy Problems of Chemical Physics Russian Academy of Sciences, Moscow, Russia
- Moscow Institute of Physics and Technology, Dolgoprudnyi, Moscow Region, Russia
| | - Thamina Acter
- Department of Chemistry, Kyungpook National University, Daegu, Republic of Korea
| | - Alexander Zherebker
- Skolkovo Institute of Science and Technology, Skolkovo, Russian Federation
- Institute for Energy Problems of Chemical Physics Russian Academy of Sciences, Moscow, Russia
| | - Arif Ahmed
- Department of Chemistry, Kyungpook National University, Daegu, Republic of Korea
| | - Sunghwan Kim
- Department of Chemistry, Kyungpook National University, Daegu, Republic of Korea
- Green Nano Center, Kyungpook National University, Daegu, Republic of Korea
| | - Eugene Nikolaev
- Skolkovo Institute of Science and Technology, Skolkovo, Russian Federation
- Institute for Energy Problems of Chemical Physics Russian Academy of Sciences, Moscow, Russia
- Moscow Institute of Physics and Technology, Dolgoprudnyi, Moscow Region, Russia
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19
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Kostyukevich YI, Kononikhin AS, Popov IA, Nikolaev EN. Structural Investigation of Biomacromolecules Using Ultrahigh-Resolution Mass Spectrometry and Isotope Exchange. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2018. [DOI: 10.1134/s1990793118040243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Affiliation(s)
- Yury Kostyukevich
- Skolkovo Institute of Science and Technology Novaya Street, 100, Skolkovo 143025, Russian Federation
- Institute for Energy Problems of Chemical Physics Russian Academy of Sciences Leninskij prospekt 38 k.2, 119334 Moscow, Russia
- Moscow Institute of Physics and Technology, 141700 Dolgoprudnyi, Moscow Region, Russia
| | - Eugene Nikolaev
- Skolkovo Institute of Science and Technology Novaya Street, 100, Skolkovo 143025, Russian Federation
- Institute for Energy Problems of Chemical Physics Russian Academy of Sciences Leninskij prospekt 38 k.2, 119334 Moscow, Russia
- Moscow Institute of Physics and Technology, 141700 Dolgoprudnyi, Moscow Region, Russia
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21
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Kostyukevich Y, Vlaskin M, Borisova L, Zherebker A, Perminova I, Kononikhin A, Popov I, Nikolaev E. Investigation of bio-oil produced by hydrothermal liquefaction of food waste using ultrahigh resolution Fourier transform ion cyclotron resonance mass spectrometry. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2018; 24:116-123. [PMID: 29050496 DOI: 10.1177/1469066717737904] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Recent research has revealed that more than 1.3 billion tons of food is wasted globally every year. The disposal of such huge biomass has become a challenge. In the present paper, we report the production of the bio-oil by hydrothermal liquefaction of three classes of food waste: meat, cheese and fruits. The highest yield of the bio-oil was observed for meat (∼60%) and cheese (∼75%), while for fruits, it was considerably low (∼10%). The molecular composition of the obtained bio-oil was investigated using ultrahigh resolution Fourier Transform Ion Cyclotron Resonance mass spectrometry and was found to be similar to that obtained from algae. Several thousand heteroatom compounds (N, N2, ON2, etc. classes) were reliably identified from each sample. It was found that bio-oils produced from meat and cheese have many compounds (∼90%) with common molecular formulas, while bio-oil produced from fruits differs considerably (∼30% of compounds are unique).
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Affiliation(s)
- Yury Kostyukevich
- 1 Skolkovo Institute of Science and Technology, Skolkovo, Russia
- 2 Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Moscow, Russia
- 3 Moscow Institute of Physics and Technology, Moscow Region, Russia
- 4 The Joint Institute for High Temperatures of Russian Academy of Sciences, Moscow, Russia
| | - Mikhail Vlaskin
- 4 The Joint Institute for High Temperatures of Russian Academy of Sciences, Moscow, Russia
| | - Ludmila Borisova
- 5 National Research University Higher School of Economics, Moscow, Russia
| | - Alexander Zherebker
- 6 Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Irina Perminova
- 6 Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Alexey Kononikhin
- 2 Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Moscow, Russia
- 4 The Joint Institute for High Temperatures of Russian Academy of Sciences, Moscow, Russia
| | - Igor Popov
- 2 Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Moscow, Russia
- 3 Moscow Institute of Physics and Technology, Moscow Region, Russia
| | - Eugene Nikolaev
- 1 Skolkovo Institute of Science and Technology, Skolkovo, Russia
- 2 Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Moscow, Russia
- 3 Moscow Institute of Physics and Technology, Moscow Region, Russia
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Acter T, Lee S, Cho E, Jung MJ, Kim S. Design and Validation of In-Source Atmospheric Pressure Photoionization Hydrogen/Deuterium Exchange Mass Spectrometry with Continuous Feeding of D 2O. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2018; 29:85-94. [PMID: 29080204 DOI: 10.1007/s13361-017-1831-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/24/2017] [Accepted: 10/01/2017] [Indexed: 06/07/2023]
Abstract
In this study, continuous in-source hydrogen/deuterium exchange (HDX) atmospheric pressure photoionization (APPI) mass spectrometry (MS) with continuous feeding of D2O was developed and validated. D2O was continuously fed using a capillary line placed on the center of a metal plate positioned between the UV lamp and nebulizer. The proposed system overcomes the limitations of previously reported APPI HDX-MS approaches where deuterated solvents were premixed with sample solutions before ionization. This is particularly important for APPI because solvent composition can greatly influence ionization efficiency as well as the solubility of analytes. The experimental parameters for APPI HDX-MS with continuous feeding of D2O were optimized, and the optimized conditions were applied for the analysis of nitrogen-, oxygen-, and sulfur-containing compounds. The developed method was also applied for the analysis of the polar fraction of a petroleum sample. Thus, the data presented in this study clearly show that the proposed HDX approach can serve as an effective analytical tool for the structural analysis of complex mixtures. Graphical abstract ᅟ.
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Affiliation(s)
- Thamina Acter
- Department of Chemistry, Kyungpook National University, Daegu, 702-701, Republic of Korea
| | - Seulgidaun Lee
- Department of Chemistry, Kyungpook National University, Daegu, 702-701, Republic of Korea
| | - Eunji Cho
- Department of Chemistry, Kyungpook National University, Daegu, 702-701, Republic of Korea
| | - Maeng-Joon Jung
- Department of Chemistry, Kyungpook National University, Daegu, 702-701, Republic of Korea
| | - Sunghwan Kim
- Department of Chemistry, Kyungpook National University, Daegu, 702-701, Republic of Korea.
- Department of Chemistry, Green Nano Center, Daegu, 702-701, Republic of Korea.
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Jeong ES, Cha E, Cha S, Kim S, Oh HB, Kwon OS, Lee J. Online Simultaneous Hydrogen/Deuterium Exchange of Multitarget Gas-Phase Molecules by Electrospray Ionization Mass Spectrometry Coupled with Gas Chromatography. Anal Chem 2017; 89:12284-12292. [PMID: 29058415 DOI: 10.1021/acs.analchem.7b03218] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this study, a hydrogen/deuterium (H/D) exchange method using gas chromatography-electrospray ionization/mass spectrometry (GC-ESI/MS) was first investigated as a novel tool for online H/D exchange of multitarget analytes. The GC and ESI source were combined with a homemade heated column transfer line. GC-ESI/MS-based H/D exchange occurs in an atmospheric pressure ion source as a result of reacting the gas-phase analyte eluted from GC with charged droplets of deuterium oxide infused as the ESI spray solvent. The consumption of the deuterated solvent at a flow rate of 2 μL min-1 was more economical than that in online H/D exchange methods reported to date. In-ESI-source H/D exchange by GC-ESI/MS was applied to 11 stimulants with secondary amino or hydroxyl groups. After H/D exchange, the spectra of the stimulants showed unexchanged, partially exchanged, and fully exchanged ions showing various degrees of exchange. The relative abundances corrected for naturally occurring isotopes of the fully exchanged ions of stimulants, except for etamivan, were in the range 24.3-85.5%. Methylephedrine and cyclazodone showed low H/D exchange efficiency under acidic, neutral, and basic spray solvent conditions and nonexchange for etamivan with an acidic phenolic OH group. The in-ESI-source H/D exchange efficiency by GC-ESI/MS was sufficient to determine the number of hydrogen by elucidation of fragmentation from the spectrum. Therefore, this online H/D exchange technique using GC-ESI/MS has potential as an alternative method for simultaneous H/D exchange of multitarget analytes.
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Affiliation(s)
- Eun Sook Jeong
- Doping Control Center, Korea Institute of Science and Technology , Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul 02792, Korea
| | - Eunju Cha
- Doping Control Center, Korea Institute of Science and Technology , Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul 02792, Korea
| | - Sangwon Cha
- Department of Chemistry, Hankuk University of Foreign Studies , 81 Oedae-ro, Mohyeon-myeon, Cheoin-gu, Yongin-si, Gyeongi-do 17035, Korea
| | - Sunghwan Kim
- Department of Chemistry, Kyungpook National University , 80 Daehakro, Buk-gu, Daegu 41566, Korea
| | - Han Bin Oh
- Department of Chemistry, Sogang University , 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Korea
| | - Oh-Seung Kwon
- Doping Control Center, Korea Institute of Science and Technology , Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul 02792, Korea
| | - Jaeick Lee
- Doping Control Center, Korea Institute of Science and Technology , Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul 02792, Korea
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Acter T, Kim D, Ahmed A, Ha JH, Kim S. Application of Atmospheric Pressure Photoionization H/D-exchange Mass Spectrometry for Speciation of Sulfur-containing Compounds. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:1687-1695. [PMID: 28488200 DOI: 10.1007/s13361-017-1678-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 03/09/2017] [Accepted: 03/15/2017] [Indexed: 06/07/2023]
Abstract
Herein we report the observation of atmospheric pressure in-source hydrogen-deuterium exchange (HDX) of thiol group for the first time. The HDX for thiol group was optimized for positive atmospheric pressure photoionization (APPI) mass spectrometry (MS). The optimized HDX-MS was applied for 31 model compounds (thiols, thiophenes, and sulfides) to demonstrate that exchanged peaks were observed only for thiols. The optimized method has been successfully applied to the isolated fractions of sulfur-rich oil samples. The exchange of one and two thiol hydrogens with deuterium was observed in the thiol fraction; no HDX was observed in the other fractions. Thus, the results presented in this study demonstrate that the HDX-MS method using APPI ionization source can be effective for speciation of sulfur compounds. This method has the potential to be used to access corrosion problems caused by thiol-containing compounds. Graphical Abstract ᅟ.
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Affiliation(s)
- Thamina Acter
- Department of Chemistry, Kyungpook National University, Daegu, 702-701, Republic of Korea
| | - Donghwi Kim
- Department of Chemistry, Kyungpook National University, Daegu, 702-701, Republic of Korea
| | - Arif Ahmed
- Department of Chemistry, Kyungpook National University, Daegu, 702-701, Republic of Korea
| | - Ji-Hyoung Ha
- World Institute of Kimchi, Gwangju, 61755, Republic of Korea
| | - Sunghwan Kim
- Department of Chemistry, Kyungpook National University, Daegu, 702-701, Republic of Korea.
- Department of Chemistry, Green Nano Center, Daegu, 702-701, Republic of Korea.
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26
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Kostyukevich YI, Kononikhin AS, Popov IA, Bugrova AE, Starodubtseva NL, Nikolaev EN. Application of deuterium–hydrogen exchange to study the secondary structure of oligonucleotide ions in a gas phase. HIGH ENERGY CHEMISTRY 2016. [DOI: 10.1134/s0018143916060096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Cho Y, Choi MH, Kim B, Kim S. Supercritical fluid chromatography coupled with in-source atmospheric pressure ionization hydrogen/deuterium exchange mass spectrometry for compound speciation. J Chromatogr A 2016; 1444:123-8. [DOI: 10.1016/j.chroma.2016.03.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 02/27/2016] [Accepted: 03/06/2016] [Indexed: 01/06/2023]
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Acter T, Kim D, Ahmed A, Jin JM, Yim UH, Shim WJ, Kim YH, Kim S. Optimization and application of atmospheric pressure chemical and photoionization hydrogen–deuterium exchange mass spectrometry for speciation of oxygen-containing compounds. Anal Bioanal Chem 2016; 408:3281-93. [DOI: 10.1007/s00216-016-9399-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 12/30/2015] [Accepted: 02/08/2016] [Indexed: 01/01/2023]
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29
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Krauss M. High-Resolution Mass Spectrometry in the Effect-Directed Analysis of Water Resources. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/bs.coac.2016.01.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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30
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Zherebker A, Kostyukevich Y, Kononikhin A, Roznyatovsky VA, Popov I, Grishin YK, Perminova IV, Nikolaev E. High desolvation temperature facilitates the ESI-source H/D exchange at non-labile sites of hydroxybenzoic acids and aromatic amino acids. Analyst 2016; 141:2426-34. [DOI: 10.1039/c5an02676h] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
H/D exchange coupled with high-resolution mass spectrometry has become a powerful analytical approach for structural investigations of complex organic matrices.
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Affiliation(s)
| | - Yury Kostyukevich
- Skolkovo Institute of Science and Technology
- Skolkovo 143025
- Russian Federation
- Institute for Energy Problems of Chemical Physics Russian Academy of Sciences
- 119334 Moscow
| | - Alexey Kononikhin
- Emanuel Institute for Biochemical Physics Russian Academy of Sciences
- 119334 Moscow
- Russia
- Institute for Energy Problems of Chemical Physics Russian Academy of Sciences
- 119334 Moscow
| | | | - Igor Popov
- Emanuel Institute for Biochemical Physics Russian Academy of Sciences
- 119334 Moscow
- Russia
- Moscow Institute of Physics and Technology
- 141700 Dolgoprudnyi, Moscow Region
| | - Yuri K. Grishin
- Lomonosov Moscow State University
- Department of Chemistry
- 119991 Moscow
- Russia
| | - Irina V. Perminova
- Lomonosov Moscow State University
- Department of Chemistry
- 119991 Moscow
- Russia
| | - Eugene Nikolaev
- Skolkovo Institute of Science and Technology
- Skolkovo 143025
- Russian Federation
- Emanuel Institute for Biochemical Physics Russian Academy of Sciences
- 119334 Moscow
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Islam A, Kim D, Yim UH, Shim WJ, Kim S. Structure-dependent degradation of polar compounds in weathered oils observed by atmospheric pressure photo-ionization hydrogen/deuterium exchange ultrahigh resolution mass spectrometry. JOURNAL OF HAZARDOUS MATERIALS 2015; 296:93-100. [PMID: 25913675 DOI: 10.1016/j.jhazmat.2015.04.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 04/01/2015] [Accepted: 04/13/2015] [Indexed: 06/04/2023]
Abstract
The resin fractions of fresh mixtures of three oils spilled during the M/V Hebei Spirit oil spill, as well as weathered oils collected at weathering stages II and IV from the oil spill site were analyzed and compared by atmospheric pressure photo-ionization hydrogen/deuterium exchange mass spectrometry (HDX MS). The significantly decreased abundance of N(+) and [N-H+D](+) ions suggested that secondary and tertiary amine-containing compounds were preferentially degraded during the early stage of weathering. [N+H](+) and [N+D](+) ions previously attributed to pyridine-type compounds degraded more slowly than secondary and tertiary amine-containing compounds. The preferential degradation of nitrogen-containing compounds was confirmed by photo-degradation experiments using 15 standard compounds. In addition, significant increases of [S1O1+H](+) and [S1O1+D](+) ions with higher DBE values were observed from fresh oil mixtures as compared to stages II and IV samples, and that could be linked with the decrease of higher DBE compounds of the S1 class. This study presented convincing arguments and evidence demonstrating that secondary and tertiary amines were more vulnerable to photo-degradation than compounds containing pyridine, and hence, preferential degradation depending on chemical structures must be considered in the production of hazardous or toxic components.
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Affiliation(s)
- Ananna Islam
- Kyungpook National University, Department of Chemistry, Daegu 702-701, Republic of Korea
| | - Donghwi Kim
- Kyungpook National University, Department of Chemistry, Daegu 702-701, Republic of Korea
| | - Un Hyuk Yim
- Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, KIOST, Geoje 656-834, Republic of Korea
| | - Won Joon Shim
- Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, KIOST, Geoje 656-834, Republic of Korea
| | - Sunghwan Kim
- Kyungpook National University, Department of Chemistry, Daegu 702-701, Republic of Korea; Green Nano Center, Department of Chemistry, Daegu 702-701, Republic of Korea.
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Acter T, Cho Y, Kim S, Ahmed A, Kim B, Kim S. Optimization and Application of APCI Hydrogen-Deuterium Exchange Mass Spectrometry (HDX MS) for the Speciation of Nitrogen Compounds. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2015; 26:1522-31. [PMID: 26115964 DOI: 10.1007/s13361-015-1166-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 04/09/2015] [Accepted: 04/10/2015] [Indexed: 05/26/2023]
Abstract
A systematic study was performed to investigate the utility of atmospheric pressure chemical ionization hydrogen-deuterium exchange mass spectrometry (APCI HDX MS) to identify the structures of nitrogen-containing aromatic compounds. First, experiments were performed to determine the optimized experimental conditions, with dichloromethane and CH(3)OD found to be good cosolvents for APCI HDX. In addition, a positive correlation between the heated capillary temperature and the observed HDX signal was observed, and it was suggested that the HDX reaction occurred when molecules were contained in the solvent cluster. Second, 20 standard nitrogen-containing compounds were analyzed to investigate whether speciation could be determined based on the different types of ions produced from nitrogen-containing compounds with various functional groups. The number of exchanges occurring within the compounds correlated well with the number of active hydrogen atoms attached to nitrogen, and it was confirmed that APCI HDX MS could be used to determine speciation. The results obtained by APCI HDX MS were combined with the subsequent investigation of the double bond equivalence distribution and indicated that resins of shale oil extract contained mostly pyridine type nitrogen compounds. This study confirmed that APCI HDX MS can be added to previously reported chemical ionization, electrospray ionization, and atmospheric pressure photo ionization-based HDX methods, which can be used for structural elucidation by mass spectrometry.
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Affiliation(s)
- Thamina Acter
- Department of Chemistry, Kyungpook National University, Daegu, 702-701, Republic of Korea
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Cho Y, Ahmed A, Islam A, Kim S. Developments in FT-ICR MS instrumentation, ionization techniques, and data interpretation methods for petroleomics. MASS SPECTROMETRY REVIEWS 2015; 34:248-263. [PMID: 24942384 DOI: 10.1002/mas.21438] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2012] [Revised: 11/25/2013] [Accepted: 03/26/2014] [Indexed: 06/03/2023]
Abstract
Because of the increasing importance of heavy and unconventional crude oil as an energy source, there is a growing need for petroleomics: the pursuit of more complete and detailed knowledge of the chemical compositions of crude oil. Crude oil has an extremely complex nature; hence, techniques with ultra-high resolving capabilities, such as Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS), are necessary. FT-ICR MS has been successfully applied to the study of heavy and unconventional crude oils such as bitumen and shale oil. However, the analysis of crude oil with FT-ICR MS is not trivial, and it has pushed analysis to the limits of instrumental and methodological capabilities. For example, high-resolution mass spectra of crude oils may contain over 100,000 peaks that require interpretation. To visualize large data sets more effectively, data processing methods such as Kendrick mass defect analysis and statistical analyses have been developed. The successful application of FT-ICR MS to the study of crude oil has been critically dependent on key developments in FT-ICR MS instrumentation and data processing methods. This review offers an introduction to the basic principles, FT-ICR MS instrumentation development, ionization techniques, and data interpretation methods for petroleomics and is intended for readers having no prior experience in this field of study.
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Affiliation(s)
- Yunju Cho
- Department of Chemistry, Kyungpook National University, Daegu, 702-701, Korea
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Kostyukevich Y, Kononikhin A, Popov I, Nikolaev E. Letter: Observation of the 16O/18O exchange during electrospray ionization. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2015; 21:109-113. [PMID: 26181285 DOI: 10.1255/ejms.1373] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Isotopic exchange approach coupled to high-resolution mass spectrometry has become the power analytical approach for a wide range of analytical and bioanalyticall applications. Considerable efforts have been dedicated to developing fast exchange techniques directly in the ionization source. But all such methods are limited to the hydrogen/deuterium exchange approaches. In this paper we demonstrate that certain types of oxygen atoms can also be exchanged for (18)O on the time scale of the ionization process. Using HIO(3) and NaIO(4) and by infusing the heavy water H(2)(18)O in the ESI source we have demonstrated that it is possible to obtain a high level of oxygen exchange. It was observed that the rate of this exchange depends to a large extent on the temperature of the desolvating capillary of the mass spectrometer. Several other species, such as peptides, oligonucleotides and low weight organic molecules, were subjected to in-ESI (16)O/(18)O exchange but the exchange was not observed.
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Affiliation(s)
- Yury Kostyukevich
- Skolkovo Institute of Science and Technology Novaya St., 100, Skolkovo 143025 Russian Federation. Institute for Energy Problems of Chemical Physics Russian Academy of Sciences Leninskij pr. 38 k.2, 119334 Moscow, Russia. Moscow Institute of Physics and Technology, 141700 Dolgoprudnyi, Moscow Region, Russia..
| | - Alexey Kononikhin
- Institute for Energy Problems of Chemical Physics Russian Academy of Sciences Leninskij pr. 38 k.2, 119334 Moscow, Russia. Moscow Institute of Physics and Technology, 141700 Dolgoprudnyi, Moscow Region, Russia..
| | - Igor Popov
- Emanuel Institute for Biochemical Physics Russian Academy of Sciences Kosygina st. 4, 119334 Moscow, Russia. Moscow Institute of Physics and Technology, 141700 Dolgoprudnyi, Moscow Region, Russia..
| | - Eugene Nikolaev
- Skolkovo Institute of Science and Technology Novaya St., 100, Skolkovo 143025 Russian Federation. Institute for Energy Problems of Chemical Physics Russian Academy of Sciences Leninskij pr. 38 k.2, 119334 Moscow, Russia. Moscow Institute of Physics and Technology, 141700 Dolgoprudnyi, Moscow Region, Russia..
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Kostyukevich Y, Kononikhin A, Popov I, Starodubtzevad N, Pekov S, Kukaev E, Indeykina M, Nikolaev E. Letter: Analytical potential of the in-electrospray ionization source hydrogen/deuterium exchange for the investigation of oligonucleotides. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2015; 21:59-63. [PMID: 25906036 DOI: 10.1255/ejms.1330] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
It has previously been reported that different conformations of oligonucleotides may be detected using a gas-phase hydrogen/deuterium (H/D) exchange performed in the collision cell of a mass spectrometer. The presence of different conformers was postulated based on the bimodal shape of the deuterium distribution and on the ion mobility spectrometry data. Here we implement an in-electrospray ionization source H/D exchange to detect the different conformations of oligonucleotides in the region of ion formation. We observed that the number of H/D exchanges depends considerably on the temperature of the desolvating capillary and varies from 25% at 50°C to 80% at 450°C, but no bimodality in the shape of the deuterium distribution was observed. Such results indicate that in the region of ion formation different conformations of oligonucleotide ions rapidly interconvert one into another.
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Affiliation(s)
- Yury Kostyukevich
- Skolkovo Institute of Science and Technology, Novaya St. 100, Skolkovo 143025, Russian Federation. Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Leninskij pr. 38 k.2, 119334 Moscow, Russian Federation. Moscow Institute of Physics and Technology, 141700 Dolgoprudnyi, Moscow Region, Russian Federation.
| | - Alexey Kononikhin
- Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Leninskij pr. 38 k.2, 119334 Moscow, Russian Federation. Moscow Institute of Physics and Technology, 141700 Dolgoprudnyi, Moscow Region, Russian Federation.
| | - Igor Popov
- Moscow Institute of Physics and Technology, 141700 Dolgoprudnyi, Moscow Region, Russian Federation. Emanuel Institute for Biochemical Physics Russian Academy of Sciences, Kosygina St. 4, 119334 Moscow, Russian Federation.
| | - Natalia Starodubtzevad
- Moscow Institute of Physics and Technology, 141700 Dolgoprudnyi, Moscow Region, Russian Federation. Research Center for Obstetrics, Gynecology and Perinatology, 4 Oparin St., Moscow 117997, Russian Federation.
| | - Stanislav Pekov
- Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Leninskij pr. 38 k.2, 119334 Moscow, Russian Federation..
| | - Eugene Kukaev
- Moscow Institute of Physics and Technology, 141700 Dolgoprudnyi, Moscow Region, Russian Federation. Emanuel Institute for Biochemical Physics Russian Academy of Sciences, Kosygina St. 4, 119334 Moscow, Russian Federation.
| | - Maria Indeykina
- Institute for Energy Problems of Chemical Physics Russian Academy of Sciences Leninskij pr. 38 k.2, 119334 Moscow, Russian Federation.
| | - Eugene Nikolaev
- Skolkovo Institute of Science and Technology, Novaya St. 100, Skolkovo 143025, Russian Federation. Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Leninskij pr. 38 k.2, 119334 Moscow, Russian Federation. Moscow Institute of Physics and Technology, 141700 Dolgoprudnyi, Moscow Region, Russian Federation.
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Kostyukevich Y, Kononikhin A, Popov I, Spasskiy A, Nikolaev E. In ESI-source H/D exchange under atmospheric pressure for peptides and proteins of different molecular weights from 1 to 66 kDa: the role of the temperature of the desolvating capillary on H/D exchange. JOURNAL OF MASS SPECTROMETRY : JMS 2015; 50:49-55. [PMID: 25601674 DOI: 10.1002/jms.3535] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 10/17/2014] [Accepted: 10/26/2014] [Indexed: 06/04/2023]
Abstract
Transition of proteins from the solution to the gas phase during electrospray ionization remains a challenging problem despite the large amount of attention it has received during the past few decades. One of the major questions relates to the extent to which proteins in the gas phase retain their condensed phase structures. We have used in-electrospray source hydrogen/deuterium exchange to determine the number of deuterium incorporations as a function of protein mass, charge state and temperature of the desolvating capillary where the reaction occurs. All experiments were performed on a Thermo LTQ FT Ultra equipped with a 7-T superconducting magnet. Ions were generated by an IonMax Electrospray ion source operated in the positive ESI mode. Deuterium exchange was performed by introducing a droplet of D2 O beneath the ESI capillary. We systematically investigated gas phase hydrogen/deuterium (H/D) exchange under atmospheric pressure for peptides and proteins of different molecular weights from 1 to 66 kDa. We observed that almost all proteins demonstrate similar exchange rates for all charge states and that these rates increase exponentially with the temperature of the desolvating capillary. We did not observe any clear correlation of the number of H/D exchanges with the value of the cross section for a corresponding charge state. We have demonstrated the possibility of performing in-ESI source H/D exchange of large proteins under atmospheric pressure. The simplicity of the experimental setup makes it a useful experimental technique that can be applied for the investigation of gas phase conformations of proteins.
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Affiliation(s)
- Yury Kostyukevich
- Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Leninskij pr., 38k.2, 119334, Moscow, Russia; Moscow Institute of Physics and Technology, 141700, Dolgoprudnyi, Moscow Region, Russia; Skolkovo Institute of Science and Technology, Novaya St., 100, Skolkovo, 143025, Russian Federation
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Salisbury JP, Liu Q, Agar JN. QUDeX-MS: hydrogen/deuterium exchange calculation for mass spectra with resolved isotopic fine structure. BMC Bioinformatics 2014; 15:403. [PMID: 25495703 PMCID: PMC4274694 DOI: 10.1186/s12859-014-0403-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 12/01/2014] [Indexed: 12/25/2022] Open
Abstract
Background Hydrogen/deuterium exchange (HDX) coupled to mass spectrometry permits analysis of structure, dynamics, and molecular interactions of proteins. HDX mass spectrometry is confounded by deuterium exchange-associated peaks overlapping with peaks of heavy, natural abundance isotopes, such as carbon-13. Recent studies demonstrated that high-performance mass spectrometers could resolve isotopic fine structure and eliminate this peak overlap, allowing direct detection and quantification of deuterium incorporation. Results Here, we present a graphical tool that allows for a rapid and automated estimation of deuterium incorporation from a spectrum with isotopic fine structure. Given a peptide sequence (or elemental formula) and charge state, the mass-to-charge ratios of deuterium-associated peaks of the specified ion is determined. Intensities of peaks in an experimental mass spectrum within bins corresponding to these values are used to determine the distribution of deuterium incorporated. A theoretical spectrum can then be calculated based on the estimated distribution of deuterium exchange to confirm interpretation of the spectrum. Deuterium incorporation can also be detected for ion signals without a priori specification of an elemental formula, permitting detection of exchange in complex samples of unidentified material such as natural organic matter. A tool is also incorporated into QUDeX-MS to help in assigning ion signals from peptides arising from enzymatic digestion of proteins. MATLAB-deployable and standalone versions are available for academic use at qudex-ms.sourceforge.net and agarlabs.com. Conclusion Isotopic fine structure HDX-MS offers the potential to increase sequence coverage of proteins being analyzed through mass accuracy and deconvolution of overlapping ion signals. As previously demonstrated, however, the data analysis workflow for HDX-MS data with resolved isotopic fine structure is distinct. QUDeX-MS we hope will aid in the adoption of isotopic fine structure HDX-MS by providing an intuitive workflow and interface for data analysis.
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Affiliation(s)
- Joseph P Salisbury
- Departments of Chemistry and Chemical Biology and Pharmaceutical Sciences and Barnett Institute of Chemical and Biological Analysis, Northeastern University, 360 Huntington Avenue, Boston, MA, 02115, USA.
| | - Qian Liu
- Departments of Chemistry and Chemical Biology and Pharmaceutical Sciences and Barnett Institute of Chemical and Biological Analysis, Northeastern University, 360 Huntington Avenue, Boston, MA, 02115, USA.
| | - Jeffrey N Agar
- Departments of Chemistry and Chemical Biology and Pharmaceutical Sciences and Barnett Institute of Chemical and Biological Analysis, Northeastern University, 360 Huntington Avenue, Boston, MA, 02115, USA.
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Gole A, Andersson JT. Group-Type Separation of Nitrogen Containing Aromatic Compounds in Coal Tar Pitch on a Hafnium Modified Silica HPLC Phase. Polycycl Aromat Compd 2014. [DOI: 10.1080/10406638.2014.895948] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Lee S, Cho Y, Kim S. Development and Application of a Software Tool for the Interpretation of Organic Mixtures' Spectra - Hydrogen Deuterium Exchange (STORM-HDX) to Interpret APPI HDX MS Spectra. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.3.749] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ahmed A, Cho Y, Giles K, Riches E, Lee JW, Kim HI, Choi CH, Kim S. Elucidating Molecular Structures of Nonalkylated and Short-Chain Alkyl (n < 5, (CH2)n) Aromatic Compounds in Crude Oils by a Combination of Ion Mobility and Ultrahigh-Resolution Mass Spectrometries and Theoretical Collisional Cross-Section Calculations. Anal Chem 2014; 86:3300-7. [DOI: 10.1021/ac4032737] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Arif Ahmed
- Kyungpook National University, Department of Chemistry, Daegu, 702-701 Republic of Korea
| | - Yunju Cho
- Kyungpook National University, Department of Chemistry, Daegu, 702-701 Republic of Korea
| | | | | | - Jong Wha Lee
- Pohang University of Science and Technology, Pohang, 790-784, Republic of Korea
| | - Hugh I. Kim
- Pohang University of Science and Technology, Pohang, 790-784, Republic of Korea
| | - Cheol Ho Choi
- Kyungpook National University, Department of Chemistry, Daegu, 702-701 Republic of Korea
- Green-Nano Materials
Research Center, Daegu, 702-701 Republic of Korea
| | - Sunghwan Kim
- Kyungpook National University, Department of Chemistry, Daegu, 702-701 Republic of Korea
- Green-Nano Materials
Research Center, Daegu, 702-701 Republic of Korea
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