The Mass Spectrometry society of Japan - The 68th Annual Conference on Mass Spectrometry, Japan
Japanese

Abstract

Table of contents

Timetable

Plenary Lectures

Society Featured Lecture

Oral Sessions (Day1, Day2, Day3)

Poster Presentations (Day3)

Workshops

Lunchtime Seminars (Day1, Day2, Day3)

Poster Presentations

Day 3, May 21（Fri.）　　Room P2 (Zoom)

3P-54　　PDF

Method for structural analysis of peptides using AP-MALDI-MS

(1Hiroshima Univ., 2Shimadzu)
oManaho Yamaguchi1, Koichi Tanaka2, Takushi Yamamoto2, Shunsuke Izumi1

Generally, atmospheric pressure (AP) MALDI-MS is considered to be a soft ionization method capable of obtaining molecular weight information of a sample with minimum fragmentation. Last year, we found that a-ions were observed when measuring high-concentration peptide samples with a CHCA matrix by atmospheric pressure MALDI-MS. In this study, we investigated using matrices with cinnamic acid skeleton and the reduced matrixes to clarify the nature of the matrix responsible for this phenomenon.