RF-only mode, frequency focusing and gated trapping for in-field MALDI FTMS: Operation considerations

D. L. Rempel, J. K. Gooden, A. L. Russell, D. C. Barbacci, M. L. Gross

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

The gated trapping, RF-only mode and frequency focusing were investigated for in-field MALDI FTMS. It was observed that gated trapping with high voltage pulses can stop within the FTMS trap in-field MALDI generated ions, which have wide ranges of mass and velocity. It was shown that substantial detection performance improvement in-field LD and MALDI might be achieved with trap frequency focusing and a high voltage RF-only mode event. Additions were made to the existing configuration of a 3-tesla Finnigan T30 FT/MS mass spectrometer including a radio coil and a switch array that intercepts the analog drives normally connected to the trapping plates.

Original languageEnglish
Pages713-714
Number of pages2
StatePublished - 2002
EventProceedings - 50th ASMS Conference on Mass Spectrometry and Allied Topics - Orlando, FL, United States
Duration: Jun 2 2002Jun 6 2002

Conference

ConferenceProceedings - 50th ASMS Conference on Mass Spectrometry and Allied Topics
Country/TerritoryUnited States
CityOrlando, FL
Period06/2/0206/6/02

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