title: Fast atom bombardment mass spectra of mercapturic acid-pathway metabolites of propachlor (2-chloro-N-isopropylacetanilide).
abstract: 1. Fast atom bombardment (FAB) mass spectra, obtained from mercapturic acid-pathway metabolites (glutathione-, mercapturic acid- and cysteine-conjugates, and a sulphoxide of the mercapturate) of propachlor, are presented. 2. Each underivatized mercapturic acid-pathway metabolite of propachlor gave a FAB mass spectrum containing an (M + H)+ ion (7-100% relative intensity), an (M + Na)+ ion and characteristic fragment ions. 3. The advantage of the FAB technique in obtaining mass spectra of these mercapturic acid-pathway metabolites of propachlor and other xenobiotics is discussed. 4. Ions in the FAB spectra resulting from sample fragment/glycerol interactions were characterized.
mesh_terms: D000083:Acetanilides / Q000378:metabolism*; D000111:Acetylcysteine / Q000378:metabolism*; D003545:Cysteine / Q000302:isolation & purification; D005978:Glutathione / Q000302:isolation & purification; D013058:Mass Spectrometry / Q000379:methods; D008970:Molecular Weight
chemical_list: D000083:Acetanilides; C011088:propachlor; D005978:Glutathione; D003545:Cysteine; D000111:Acetylcysteine