プログラム

ポスター発表

第1日　5月15日（火）　　ポスター会場

1P-42　　PDF

走査型プローブエレクトロスプレーイオン化質量分析法(SPESI-MS)におけるサンプリングイオン化プロセスの可視化

(¹阪大理・ ²静岡大院工)
^o上堀内武尉¹・ 大塚洋一¹・ 竹内彩¹・ 岩田太²・ 松本卓也¹

Tapping-mode scanning probe electrospray ionization (t-SPESI) realizes the mass imaging using a capillary probe. Although the formation of a liquid bridge and an electrospray enables the ambient sampling ionization (ASI), the dynamic behavior of the charged liquid at the probe apex is unclear. In order to study the process of ASI with t-SPESI, we have developed the optical detection method of a probe motion. The time dissolved measurements indicated the formation/breakage of a liquid bridge and the subsequent ionization of sampled molecules. We also analyzed the the mechanical property of the probe by finite element calculation.