Tandem Time-of-Flight Mass Spectrometer

Timothy J. Cornish, Robert J. Cotter

Research output: Contribution to journalArticlepeer-review

60 Scopus citations


A compact, laser desorption tandem time-of-flight mass spectrometer is described. The instrument incorporates two dual-stage reflectron 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-fllght instruments.

Original languageEnglish (US)
Pages (from-to)1043-1047
Number of pages5
JournalAnalytical Chemistry
Issue number8
StatePublished - Apr 1 1993
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry


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