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Analysis of a mass‐analyzed ion kinetic energy profile. I. Analytical expression for a peak shape at a single kinetic energy release
Author(s) -
Yeh In Chul,
Kim Soo
Publication year - 1992
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.1290060209
Subject(s) - kinetic energy , chemistry , metastability , ion , dissociation (chemistry) , atomic physics , collision induced dissociation , potential energy , analytical chemistry (journal) , molecular physics , mass spectrometry , classical mechanics , tandem mass spectrometry , physics , chromatography , organic chemistry
An analytical expression has been derived for the mass‐analyzed ion kinetic energy spectral profile resulting from a single kinetic energy release in a metastable ion decopmposition. Effects of the Z and Y discriminations and the site of dissociation on the peak‐shape have been accounted for. In addition an analytical peak‐shape function has been derived for a dissociation occurring in and near the collision cell floated at high voltage. Excellent agreement between the present results and the peak shapes obtained by regorous ion‐optical trajectory calculations support the validity of the present method. More importantly, the present method has the advantage of a tremendous reduction in computing time.