A new method of trapping ions produced by matrix‐assisted laser desorption lonization in a quadrupole ion trap

Vladimir M. Doroshenko, Robert J. Cotter

Research output: Contribution to journalArticle

Abstract

A novel method for trapping ions produced by matrix‐assisted laser desorption ionization (MALDI) using controlled gating of the trapping field is suggested. Because it does not use collisions with helium atoms for reducing ion kinetic energy, trapping can be accomplished at low pressures of the buffet gas. The method has been implemented on an ion‐trap detector, modified for MALDI experiments inside an ion trap with axial introduction of the sample probe. High mass resolution (1 part in 12 000) is reported.

Original languageEnglish (US)
Pages (from-to)822-827
Number of pages6
JournalRapid Communications in Mass Spectrometry
Volume7
Issue number9
DOIs
StatePublished - 1993

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry

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