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Ionization and dissociation of diethylamine by field ionization mass spectrometry
Author(s) -
Zahran N. F.,
Helal A. I.
Publication year - 1983
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.1210180507
Subject(s) - diethylamine , chemistry , ion , electron ionization , dissociation (chemistry) , mass spectrometry , ionization , chemical ionization , field desorption , mass spectrum , protonation , fragmentation (computing) , analytical chemistry (journal) , thermal ionization , photochemistry , chromatography , organic chemistry , computer science , operating system
The field ionization mass spectrum of diethylamine on a 5 μm activated wire at 300 K yields surface product ions like protonated molecular ions and doubly charged ions as well as gas phase ions like parent minus CH 3 group. Variations of the reaction rate as a function of the decomposition times in the range 10 −11 ‐10 −6 s for the elimination of a CH 3 group are studied. The reaction rates are evaluated with the help of the retarding potential technique.