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Electron impact mass spectrometry of some 5‐amino salicylic acid derivatives
Author(s) -
Rizzi Emanuele,
Ferrario Francesco,
Sala Alberto,
Catinella Silvia,
Traldi Pietro
Publication year - 1994
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.1290080206
Subject(s) - chemistry , fragmentation (computing) , electron ionization , mass spectrum , mass spectrometry , salicylic acid , ion , ionization , spectroscopy , kinetic energy , polyatomic ion , analytical chemistry (journal) , chemical ionization , computational chemistry , organic chemistry , chromatography , biochemistry , physics , quantum mechanics , computer science , operating system
The electron impact‐induced fragmentation processes of eleven differently substituted 5‐amino salicylic acids were studied by means of mass‐analyzed ion kinetic energy (MIKE) spectroscopy, parent‐ion spectroscopy and accurate mass measurements. Most of the fragmentation processes are related to the cleavages of the 5‐amino substituents. Unusual behaviour is that related to the CO 2 loss from the molecular ion, quite significant in the normal electron ionization spectra and completely undetectable in the MIKE spectra.