AN EXTERNAL SECONDARY ION-SOURCE FOR FOURIER-TRANSFORM MASS-SPECTROMETRY

被引:18
|
作者
IJAMES, CF [1 ]
WILKINS, CL [1 ]
机构
[1] UNIV CALIF RIVERSIDE,DEPT CHEM,RIVERSIDE,CA 92521
基金
美国国家科学基金会; 美国国家卫生研究院;
关键词
D O I
10.1016/1044-0305(90)85037-M
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A differentially pumped external secondary ion source for Fourier transform mass spectrometry is described. Installation does not interfere with other experiments such as laser desorption or photodissociation. Spectra of cesium iodide clusters (with ions up to m/z 8187), polyethylene glycol 1000, and histidine from both glycerol and dithiothreitol-dithioerythritol matrices are reported. The ion with m/z 156 from histidine was recorded with mass resolution of 160,000. © 1990 American Society for Mass Spectrometry.
引用
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页码:208 / 216
页数:9
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