日本質量分析学会 第69回質量分析総合討論会会

演題概要

ポスター発表

第3日 5月21日(金)  P2会場(Zoom)

大気圧MALDI-MSを利用したペプチドの構造解析方法

(1広島大院理2島津)
o山口愛歩1田中耕一2山本卓志2泉俊輔1

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.