TANDEM TIME-OF-FLIGHT MASS-SPECTROMETER

被引：58

作者：

CORNISH, TJ ^{[1
]}

COTTER, RJ ^{[1
]}

机构：

[1] JOHNS HOPKINS UNIV,SCH MED,DEPT PHARMACOL & MOLEC SCI,MIDDLE ATLANTIC MASS SPECT LAB,BALTIMORE,MD 21205

来源：

ANALYTICAL CHEMISTRY | 1993年 / 65卷 / 08期

关键词：

D O I：

10.1021/ac00056a017

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A compact, laser desorption tandem time-of-flight mass spectrometer is described. The instrument incorporates two dual-stage reflection analyzers and a collision region for producing product ions by collision-induced dissociation. Selection of ions of a particular mass is accomplished by deflection of ions from stable trajectory angles entering the second reflectron, while the use of a pulsed valve for introduction of the collision gas obviates the need for differential pumping of the collision region. Initial results are presented, as well as a discussion for optimizing the performance of tandem time-of-flight instruments.

引用

页码：1043 / 1047

页数：5

共 19 条

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