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Crotti S, Menicatti M, Pallecchi M, Bartolucci G. Tandem mass spectrometry approaches for recognition of isomeric compounds mixtures. MASS SPECTROMETRY REVIEWS 2023; 42:1244-1260. [PMID: 34841547 DOI: 10.1002/mas.21757] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 10/27/2021] [Accepted: 10/27/2021] [Indexed: 06/07/2023]
Abstract
The present review aims to collect the published literature pertaining the recognition of isobaric compounds (isomers or stereoisomers) using the features of tandem mass spectrometry (MS) experiments without any chromatographic separation or chemical modification (derivatization or isotopic enrichment) of the analytes. MS/MS methods possess high selectivity, wide dynamic range and high throughput capabilities. Generally, tandem MS has limited capability for distinguishing isomers that fragment similarly. However, some MS/MS methods have been developed and positively applied to isomers discrimination. Among the literature on this topic, the applications that fit on the review subject can be summarized as follow: (1) chiral discrimination by the kinetic method, (2) the use energy-resolved tandem mass spectra and the survival yield (SY) representation, (3) the kinetics evaluation of the ion-molecule interaction and (4) the postprocessing mathematical algorithm to resolve the isomers in MS/MS signal.
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Affiliation(s)
- Sara Crotti
- Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy
| | - Marta Menicatti
- Dipartimento Neurofarba, Università di Firenze, Florence, Italy
| | - Marco Pallecchi
- Dipartimento Neurofarba, Università di Firenze, Florence, Italy
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Affiliation(s)
- Hai-Long Qian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China.,International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China.,Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Shu-Ting Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China.,International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China.,Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xiu-Ping Yan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China.,International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China.,Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.,Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
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Yang S, Gu L, Wu F, Dai X, Xu F, Li Q, Fang X, Yu S, Ding CF. The chirality determination of amino acids by forming complexes with cyclodextrins and metal ions using ion mobility spectrometry, and a DFT calculation. Talanta 2022; 243:123363. [PMID: 35272154 DOI: 10.1016/j.talanta.2022.123363] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 02/15/2022] [Accepted: 03/02/2022] [Indexed: 02/06/2023]
Abstract
Chiral recognition is of highly interest in the areas of chemistry, pharmaceuticals, and bioscience. An effective strategy of enantiomeric determination of amino acids (AAs) was developed in this work. All 19 natural AAs enantiomers can be easily distinguished by ion mobility-mass spectrometry of the non-covalent complexes of AAs with cyclodextrins (α-CD, β-CD and γ-CD) and Mg2+ without any chemical derivatization. Differences of the mobilities between the enantiomers' complexes is from 0.006 to 0.058 V s/cm2. In addition, the complex of [β-CD + Phe + Mg]2+ was selected as an example to study the relative quantification by measuring L/D-Phe at different molar ratio of 10:1 to 1:10 in the μM range, resulting in a good linearity (R2 > 0.99) and high sensitivity at 2 μM. A DFT calculation was also performed to illustrate the detailed molecular structure of the complexes of CDs, Mg2+ and D- or L-Phe. Both experiment and theoretical calculation showed that Mg2+ plays an important role in host/guest interactions, which changed the molecular conformations by non-covalent interaction between Mg2+ and CDs, and resulted in the different collision cross-sections of the complex ions of CDs, Mg2+ and D- or L-AAs in the gas phase. This effective and convenient strategy could potentially be utilized in scientific research and industry for routine enantiomeric determination of natural AAs, peptides and some other small chiral biomolecules such as non-natural AAs and carboxylic acid-containing drugs.
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Affiliation(s)
- Shutong Yang
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China; Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Liancheng Gu
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Fangling Wu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Xinhua Dai
- National Institute of Metrology, Beijing, 100029, China
| | - Fuxing Xu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Qiaoyu Li
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Xiang Fang
- National Institute of Metrology, Beijing, 100029, China.
| | - Shaoning Yu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Chuan-Fan Ding
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
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Xie C, Gu L, Wu Q, Li L, Wang C, Yu J, Tang K. Effective Chiral Discrimination of Amino Acids through Oligosaccharide Incorporation by Trapped Ion Mobility Spectrometry. Anal Chem 2021; 93:859-867. [PMID: 33226780 DOI: 10.1021/acs.analchem.0c03461] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Chiral analysis is critical to many research fields due to different biological functions of enantiomers in living systems. Although the use of ion mobility spectrometry (IMS) has become an alternative technology in the area of chiral measurements, there is still a lack of a general chiral selector for IMS-based chiral recognition, especially for small chiral molecules. Here, a new method using oligosaccharides as the chiral selector has been developed to discriminate chiral amino acids (AAs) by trapped ion mobility spectrometry-mass spectrometry (TIMS-MS). We analyzed 21 chiral amino acids, including small molecules (e.g., alanine and cysteine). Our data showed that the use of nonreducing tetrasaccharides was effective for the separation of chiral AAs, which differentiated 21 chiral AAs without using metal ions. By further incorporating a copper ion, the separation resolution could be improved to 1.64 on average, which accounts for an additional 52% improvement on top of the already achieved separation in metal-free analysis. These results indicate that the use of tetrasaccharides is an effective strategy for the separation of AA enantiomers by TIMS. The method developed in this study may open up a new strategy for effective IMS-based chiral analysis.
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Affiliation(s)
- Chengyi Xie
- Institute of Mass Spectrometry, Ningbo University, Ningbo 315211, P. R. China.,Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, P. R. China
| | - Liancheng Gu
- Department of Chemistry, Fudan University, Shanghai 200438, P. R. China
| | - Qidi Wu
- Institute of Mass Spectrometry, Ningbo University, Ningbo 315211, P. R. China.,Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, P. R. China
| | - Lei Li
- Institute of Mass Spectrometry, Ningbo University, Ningbo 315211, P. R. China.,School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Chenlu Wang
- Institute of Mass Spectrometry, Ningbo University, Ningbo 315211, P. R. China.,School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Jiancheng Yu
- Institute of Mass Spectrometry, Ningbo University, Ningbo 315211, P. R. China.,Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, P. R. China
| | - Keqi Tang
- Institute of Mass Spectrometry, Ningbo University, Ningbo 315211, P. R. China.,School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
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