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‘Doubly charged ion’ mass spectra of some simple aromatic compounds
Author(s) -
Bey J. H.,
Mathias A.,
Williams A. E.
Publication year - 1971
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.1210050308
Subject(s) - ion , mass spectrum , chemistry , mass spectrometry , spectral line , benzene , kinetic energy , toluene , charged particle , analytical chemistry (journal) , physics , organic chemistry , chromatography , quantum mechanics , astronomy
Benzene, toluene, phenol, diphenyl ether and the three isomeric dihydroxy‐benzenes have been examined using an MS‐9 mass spectrometer under conditions that allowed only ions having twice the normal amount of kinetic energy to be detected. These ions are, in fact, singly charged ions arising from charge exchange reactions of doubly charged ions of the same mass, occuring in the first field free region of the Spectrometer. It is argued that the spectra obtained yield essentially the distribution of doubly charged ions in the source region. These ‘doubly charged ion’ mass spectra are compared with the normal singly charged ion spectra of the compounds and the implications of the significant differences that are found, are discussed.