Mass selective ejection by axial resonant excitation from a linear ion trap

  • Yuichiro Hashimoto
  • Hideki Hasegawa
  • Takashi Baba
  • Izumi Waki
Articles

Abstract

We describe a new mass selective ejection method from a linear ion trap, which we call axial resonant excitation (AREX). A set of vane lenses are inserted between each quadrupole rod to produce electrostatic potential that is approximately harmonic along the central axis of the quadrupole field. After ions with specific m/z are resonantly oscillated in the axial direction, the ions are mass selectively ejected in the axial direction. At a high scan rate of 11 Th/ms, AREX achieved a high ejection efficiency of more than 60%, which is more than three times higher than a conventional mass selective axial ejection method from a linear trap using fringing field.

Copyright information

© American Society for Mass Spectrometry 2006

Authors and Affiliations

  • Yuichiro Hashimoto
    • 1
  • Hideki Hasegawa
    • 1
  • Takashi Baba
    • 1
  • Izumi Waki
    • 1
  1. 1.Central Research LaboratoryHitachi, Ltd.TokyoJapan

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