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A comparison of positive ion and negative ion fast atom bombardment mass spectral data for some sulphonyl hydrazones and derivatives
Author(s) -
New A. P.,
Haskins N. J.,
Frearson M. J.
Publication year - 1989
Publication title -
biomedical and environmental mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0887-6134
DOI - 10.1002/bms.1200180819
Subject(s) - fast atom bombardment , ion , chemistry , mass spectrometry , mass spectrum , ionization , chemical ionization , electron ionization , atom (system on chip) , analytical chemistry (journal) , organic chemistry , chromatography , computer science , embedded system
A number of sulphonyl hydrazones and derivatives have been synthesized and tested for biological activity as pesticides during the crop protection research programme at the Hatfield Polytechnic. A recent comparative ionization study of some of these compounds using electron impact (EI), fast atom bombardment (FAB) and various chemical ionization methods showed FAB mass spectrometry to be the optimum technique to use in terms of molecular weight information obtained. This study compares the FAB mass spectral data in positive and negative ion mode using an alternating positive and negative ion detection system.