Spray mechanism in paper spray ionization

被引：145

作者：

Espy, Ryan D. ^{[1
]}

Muliadi, Ariel R. ^{[2
]}

Ouyang, Zheng ^{[3
,4
]}

Cooks, R. Graham ^{[1
,4
]}

机构：

[1] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA

[2] Purdue Univ, Dept Chem Engn, W Lafayette, IN 47909 USA

[3] Purdue Univ, Weldon Sch Biomed Engn, W Lafayette, IN 47907 USA

[4] Purdue Univ, Ctr Analyt Instrumentat Dev, W Lafayette, IN 47907 USA

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY | 2012年 / 325卷

基金：

美国国家科学基金会;

关键词：

Doppler anemometry; Droplet sizes; Conejet; Electrosprays; Ambient ionization; Ion evaporation; Field ionization; MASS-SPECTROMETRY; ELECTROSPRAY-IONIZATION; MONODISPERSE ELECTROSPRAYS; ATMOSPHERIC-PRESSURE; CHARGED DROPLETS; JET MODE; EVAPORATION; DESORPTION; DYNAMICS; FISSION;

D O I：

10.1016/j.ijms.2012.06.017

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Images and droplet size measurements show that paper spray operates in two distinct spray modes. Mode 1 occurs in solvent-rich systems in which multiple Taylor conejets are created producing droplets of a range of sizes. Mode 2 occurs at low solvent flow rates and the higher currents (similar to 1 uA) suggest a contribution from corona discharge. The latter experiment produces monodispersed droplet sizes. A distinguishing feature of paper spray in both modes is a fixed droplet velocity independent of droplet size. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：167 / 171

页数：5

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