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- Title
Determination of the compound class and functional groups in protonated analytes via diagnostic gas‐phase ion‐molecule reactions.
- Authors
Liu, Judy Kuan‐Yu; Niyonsaba, Edouard; Alzarieni, Kawthar Z.; Boulos, Victoria M.; Yerabolu, Ravikiran; Kenttämaa, Hilkka I.
- Abstract
Diagnostic gas‐phase ion‐molecule reactions serve as a powerful alternative to collision‐activated dissociation for the structural elucidation of analytes when using tandem mass spectrometry. The use of such ion‐molecule reactions has been demonstrated to provide a robust tool for the identification of specific functional groups in unknown ionized analytes, differentiation of isomeric ions, and classification of unknown ions into different compound classes. During the past several years, considerable efforts have been dedicated to exploring various reagents and reagent inlet systems for functional‐group selective ion‐molecule reactions with protonated analytes. This review provides a comprehensive coverage of literature since 2006 on general and predictable functional‐group selective ion‐molecule reactions of protonated analytes, including simple monofunctional and complex polyfunctional analytes, whose mechanisms have been explored computationally. Detection limits for experiments involving high‐performance liquid chromatography coupled with tandem mass spectrometry based on ion‐molecule reactions and the application of machine learning to predict diagnostic ion‐molecule reactions are also discussed.
- Subjects
COLLISION induced dissociation; ION-molecule collisions; LIQUID chromatography-mass spectrometry; GAS phase reactions; TANDEM mass spectrometry; FUNCTIONAL groups; OXYGEN carriers; COLLISION broadening
- Publication
Mass Spectrometry Reviews, 2023, Vol 42, Issue 5, p1508
- ISSN
0277-7037
- Publication type
Article
- DOI
10.1002/mas.21727