Faculty Publications

Use Of A Kinetic Energy Orifice As A Probe Of Metastable Dissociation In Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Document Type

Article

Journal/Book/Conference Title

Journal of the American Society for Mass Spectrometry

Volume

11

Issue

12

First Page

1118

Last Page

1124

Abstract

Although Fourier transform ion cyclotron resonance mass spectrometry is a powerful tool in the qualitative observation of gas phase reactions, ion detection is on the millisecond time scale, orders of magnitude longer than typically found when using a sector instrument. Observations of short-lived species such as chemically activated adduct ions can be accomplished using selective ion excitation as a probe of intermediate lifetime. Whereas ion elimination has been shown to be effective in monitoring ion lifetimes on the microsecond time scale, problems associated with detecting ions produced with high kinetic energies limits the technique. Use of a kinetic energy orifice as an ion skimmer effectively eliminates ions near the center of the ion cell at relatively low kinetic energies. By modifying a single section cell to include a kinetic energy orifice, the lifetimes of chemically activated adduct ions have been investigated. Copyright © 2000 American Society for Mass Spectrometry.

Department

School of Health, Physical Education, and Leisure Services

Department

Department of Chemistry

Original Publication Date

12-1-2000

DOI of published version

10.1016/S1044-0305(00)00184-7

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