日本質量分析学会 第67回質量分析総合討論会

Abstract

Poster Presentations

Day 3, May 17(Fri.)  Room P (Multi-purpose Hall)

Isomer Separation of Benzocaine Proton Adduct Ion by Low-Temperature Ion Mobility Mass Spectrometer

(Tohoku Univ.)
oShun Miyazaki, Souta Tainaka, Keijiro Ohshimo, Fuminori Misaizu

In producing protonated molecular ions by electrospray ionization (ESI), there are plural protonated structural isomers (protomers) with different protonated substituents. Relative stability of protomers are strongly dependent on solvent, and the population between the protomers were studied in the gas phase by ion mobility mass spectrometry (IMMS). In this study, two protomers of a benzocaine molecule (O- and N-protomers) have been separated by low-temperature IMMS using a home-built apparatus developed recently in our group. In order to study the chemical reactivity difference between the protomers, we are planning to introduce gas molecules or laser pulse after ion mobility separation.