Premium
Mass analysis of overlapping ion kinetic energy peaks arising from charge separation in dications
Author(s) -
March R. E.,
Harrison A. G.,
Young A. B.
Publication year - 1987
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210221002
Subject(s) - dication , kinetic energy , ion , metastability , chemistry , mass spectrometry , atomic physics , resolution (logic) , quadrupole mass analyzer , charge (physics) , analytical chemistry (journal) , physics , organic chemistry , chromatography , quantum mechanics , artificial intelligence , computer science
Abstract A triple‐sector instrument of reversed geometry, BEQQ, has been employed to resolve overlapping ion kinetic energy peaks arising from charge separation of metastable dications. Separation was achieved through mass resolution of the dication in the magnetic sector and of the singly charged product ion of greater mass in the quadrupole mass filter accompanied by energy resolution with the electric sector; the electric sector was scanned to cover the complete range of each charge separation peak. Two overlapping ion kinetic energy peaks arising from charge separation of the diphenylenimine dication and up to four overlapping ion kinetic peaks arising from charge separations of dications arising from benzene‐1,3,5‐ d 3 have been resolved. The kinetic energy releases have been calculated in each case. Enhanced z ‐discrimination is observed with the final stage of mass analysis.