演題概要

ポスター発表

第1日　5月11日（月）　　P会場（1008/09）

1P-13　　PDF

Guanine多量体イオンの衝突誘起解離の反応温度およびOPIG-DC依存性

(横市大院生命ナノ)
^o角田渉・ 金森怜子・ 北村佐樹・ 井山貴瑛・ 森下樹里・ 米林優人・ 野々瀬真司

To understand life phenomenon, it is important to reveal the functions and structures of biomolecules. However, it is difficult to study properties of proteins and nucleic acids which constitute a living body because they interact with other biomolecules and water molecules in vivo. In this research, sodium added guanine multimer ions (G_nNa+, n = 1~4) or potassium added guanine multimer ions (G_nK+, n = 1~8) were generated in a vacuum using electrospray ionization. We examined DC voltage of octapole ion guide (OPIG-DC) dependence and reaction temperature dependence of collision-induced dissociation (CID). Information relate to steric structure was obtained from CID research. The results indicate that CID of G_nNa+ or G_nK+ is promoted at high temperature or high OPIG-DC voltage. It is inferred that as reaction temperature or OPIG-DC voltage increases, the collision energy, the collision frequency, and the internal energy of ions increase.