title: Confirmation of phorate, terbufos, and their sulfoxides and sulfones in water by capillary gas chromatography/chemical ionization mass spectrometry.
abstract: A gas chromatographic/mass spectrometric method capable of confirming phorate, terbufos, their sulfoxides, and sulfones in water is reported. Parents and their metabolites are separated in less than 5 min using a short capillary GC column and high carrier gas linear velocities. Positive ion chemical ionization mass spectrometry generates (M + H) ions indicative of the different molecular weights of the analytes and at least one confirmatory fragment ion for each analyte. Residues have been qualitatively confirmed at the 1 ppb level in fortified water samples from a variety of sources. Apparent residues in control water were less than 0.1 ppb.
authors.affiliation: American Cyanamid Co., Agricultural Research Division, Princeton, NJ 08540.
authors.forename: S J
authors.initials: SJ
authors.lastname: Stout
authors.forename: A R
authors.initials: AR
authors.lastname: daCunha
authors.forename: J E
authors.initials: JE
authors.lastname: Boyd
authors.forename: J M
authors.initials: JM
authors.lastname: Devine
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry; D007306:Insecticides / Q000032:analysis*; D009946:Organothiophosphorus Compounds / Q000032:analysis*; D010702:Phorate / Q000032:analysis*; D013450:Sulfones / Q000032:analysis; D013454:Sulfoxides / Q000032:analysis; D014867:Water / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis
chemical_list: D007306:Insecticides; D009946:Organothiophosphorus Compounds; D013450:Sulfones; D013454:Sulfoxides; D014874:Water Pollutants, Chemical; D014867:Water; D010702:Phorate; C012568:terbufos