期刊
MASS SPECTROMETRY REVIEWS
卷 28, 期 6, 页码 918-936出版社
WILEY
DOI: 10.1002/mas.20248
关键词
nanoelectrospray; emitter; multispray; nano-LC-MS coupling; emitter array
类别
The benefits of electrospray ionization are many, including sensitivity, robustness, simplicity and the ability to couple continuous flow methods with mass spectrometry The technique has seen further improvement by lowering flow rates to the nanoelectrospray regime (<1,000 nL/min), where sample consumption is minimized and sensitivity increases. The move to nanoelectrospray has required a shift in the design of the electrospray source which has mostly involved the emitter itself. The emitter has seen an evolution in architecture as the shape and geometry of the device have proved pivotal in the formation of sufficiently small droplets for sensitive MS detection at these flow rates. There is a clear movement toward the development of emitters that produce multiple Taylor cones. Such multielectrospray emitters have been shown to provide enhanced sensitivity and sample utilization. This article reviews the development of nanoelectrospray emitters, including factors such as geometry and the manner of applying voltage. Designs for emitters that take advantage of multielectrospray are emphasized. (C) 2009 Wiley Periodicals, Inc., Mass Spec Rev 28:918-936, 2009
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