The Mass Spectrometry society of Japan - The 71st Annual Conference on Mass Spectrometry, Japan
Japanese

Abstract

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Timetable

Plenary Lecture

Symposium Sessions (Day1, Day2, Day3)

Basic Sessions (Day1, Day2, Day3)

Young Researchers' Sessions (Day1, Day2, Day3)

Poster Presentations (Day1, Day2, Day3)

Special Evening Sessions

Corporate Program

Poster Presentations

Day 1, May 15（Mon.）　　Room P (Foyer, Room 1004-1007)

1P-13　　PDF

Mass spectrometry of structural isomers of vanillin

(Yokohama City Univ.)
oSaki Oe, Kanako Sekimoto

Volatile compounds emanating from the ecosystem are detected by interacting with olfactory receptors of organisms and play an important role in their survival and reproduction. Those interactions differ in action depending on stereoisomerism of compounds. In this study, we analyzed vanillin and its structural isomers using an atmospheric pressure corona discharge ionization mass spectrometry (APCDI-MS) which can measure atmospheric volatile compounds in real time. In full spectra, the O2- adducts of the isovanillin dimers were specifically observed, which allows isovanillin to be identified distinguishably. In CID spectra, the fragmentation pathway and resulting intensities of product ions were identical for vanillin and isovanillin, whereas o-vanillin represented other fragmentation pattern. It suggested that structural isomers can be distinguished by combining full and CID spectra obtained by APCDI-MS.