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

Basic Sessions

Day 2, May 16（Tue.）　10:09-10:27　Room B (Room 1202)

2B-O-1009　　PDF

OPIG-DC-Resolved Proton Transfer Reactions of Somatostatin Ions

(Yokohama City Univ.)
oShinji Nonose, Hiroto Ota, Satofumi Tago, Soju Tomiyama

OPIG-DC-resolved proton transfer reactions of somatostatin ions to 1,5-pentanediamine (Peda) were examined in the gas phase. Absolute reaction rate constants for proton transfer were determined from intensities of precursor and product ions in the mass spectra. With changes of direct current (DC) voltage to put octapole ion guide (OPIG) of the collision cell, remarkable change was observed for distribution of the product ions and the reaction rate constants. The results indicate that conformation changes on ions at OPIG-DC voltage range, which relate with complex formation. An issue that is attracting considerable attention is their conformations might resemble structural evolution that originated from internal energy in the gas phase.