Abstract

AbstractThe 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 CO2 loss from the molecular ion, quite significant in the normal electron ionization spectra and completely undetectable in the MIKE spectra.

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