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Double resonance ejection in a micro ion trap mass spectrometer
Author(s) -
Moxom Jeremy,
Reilly Peter T. A.,
Whitten William B.,
Ramsey J. Michael
Publication year - 2002
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.635
Subject(s) - chemistry , quadrupole ion trap , ion trap , ion , resonance (particle physics) , atomic physics , mass spectrometry , excitation , trap (plumbing) , physics , organic chemistry , chromatography , quantum mechanics , meteorology
Abstract Ion ejection from a cylindrical micro ion trap by resonance excitation of the secular motion is observed to be strongly dependent on the frequency of the secular motion at resonance. Both the intensity of the ion signal and the mass resolution of the resulting mass spectrum are increased when the ion secular frequency is approximately that of a nonlinear resonance of the trap. The resonances are attributed to electrical as well as geometrical considerations. Copyright © 2002 John Wiley & Sons, Ltd.