Abstract
Electron impact (EI) and fast atom bombardment (FAB) mass spectrometry were used to characterize the heterocyclic aromatic amines, 2-amino-3-methylimidazo[4,5-f]quinoline and 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline and their metabolites. The carcinogenic N2-hydroxy metabolites and several non-conjugated detoxification products were analysed directly by EI mass spectrometry, while several polar sulphate and beta-glucuronic acid conjugates were analysed by FAB mass spectrometry. Analysis of beta-glucuronic acid conjugates was also achieved by EI mass spectrometry following silylation.
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