Electrospray from a droplet

被引：1
|
作者：
Chiarot, Paul R. [2 ]
Sullivan, Pierre [1 ]
Ben Mrad, Ridha [1 ]
机构：
[1] Univ Toronto, Dept Mech & Ind Engn, Toronto, ON M5S 3G8, Canada
[2] SUNY Binghamton, Dept Mech Engn, Binghamton, NY 13902 USA
来源：
EXPERIMENTAL THERMAL AND FLUID SCIENCE | 2012年 / 37卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
Electrospray; Interface phenomena; Taylor cones; MASS-SPECTROMETRY;
D O I：
10.1016/j.expthermflusci.2011.10.002
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A method for achieving electrospray ionization directly from a droplet is reported. The electrospray is formed at the tip of a capillary wick bonded to a glass substrate with patterned electrodes. The droplet of sample solution is delivered to the base of the wick, forming a reservoir. Capillary action draws the solution from the reservoir to the tip of the wick, continuously replenishing the sample as it is emitted via electrospray. No external pressure source is required to drive the flow. The glass surface of the substrate is made hydrophobic to ensure the integrity of the reservoir. An 8 mu L droplet of 0.4% (w/v) bovine serum albumin solution maintains a steady spray for 1-2 min operating in cone-jet mode. The electrospray emitter is compatible with digital microfluidic schemes that employ single-plate droplet actuation. (C) 2011 Elsevier Inc. All rights reserved.
引用
收藏
页码：184 / 188
页数：5
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