日本質量分析学会 第68回質量分析総合討論会会

演題概要

ポスター発表

第2日 5月12日(火)  P会場(1008/09)

オフセット電圧を印加した短パルスエレクトロスプレーによる質量分析

(山梨大院医工農)
o相摸杜武

In general, electrospray is generated continuously by applying DC high voltages. In this study, electrospray was studied by applying pulsed high voltages with duration between 200 ns and 1 ms. The pulse and offset voltages were applied to an acupuncture needle inserted to an electrospray emitter (tip i.d 4.0 µm) by using a fast high voltage transistor switch coupled with two power supplies. It was confirmed that electrospray was surely generated within 100 µs by applying offset voltages that were lower than the threshold voltage for the generation of continuous electrospray.