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

Abstract

Table of contents

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 3, May 17（Wed.）　　Room P (Foyer, Room 1004-1007)

3P-02　　PDF

Field ionization fragmentation analysis of methyl stearate using high-accurate time-of-flight mass spectrometer, based on the concepts of low-internal energy mass spectrometry

(1Yokohama City Univ., 2JEOL)
oMitsuo Takayama1, Masaaki Ubukata2, Kenji Nagatomo2, Jun Tamura2

Fragment ions observed in positive-ion field ionization (FI) mass spectrum of methyl stearate were analyzed by high-accurate time-of-flight mass spectrometer. The aliphatic (CnHm) and acylium (CnHmO) fragment ions can be explained by field- and radical-induced dissociations, respectively, while methyl ester (CnHmO2) fragment ions can be rationally explained by the rearrangement reactions based on the concepts of low-internal energy mass spectrometry with low-activation energy/entropy processes