Analysis of disulfoton metabolites in crops with GC-FPD and GC/MS

• Published in: Shokuhin eiseigaku zasshi Vol. 40; no. 2
• Main Authors: Tanaka, Y. (Yokohama-shi. Inst. of Health (Japan)), Sasao, T, Kirigaya, T, Hosoi, S, Kawamura, T, Nakazawa, H
• Format: Journal Article
• Language: Japanese
• Published: 01.04.1999
• Subjects: ANALYTICAL METHODS; CHROMATOGRAPHIE EN PHASE GAZEUSE; CROMATOGRAFIA DE GASES; CROPS; CULTIVOS; DISULFOTON; ESPECTROMETRIA DE MASAS; GAS CHROMATOGRAPHY; MASS SPECTROMETRY; METABOLITE; METABOLITES; METABOLITOS; PLANTE DE CULTURE; SPECTROMETRIE DE MASSE; TECHNIQUE ANALYTIQUE; TECNICAS ANALITICAS
• ISSN: 0015-6426
• DOI: 10.3358/shokueishi.40.137

Two unknown peaks were detected on the chromatogram of turnip greens extract by GC-FPD. These unknown peaks were identified as dimetonthiol sulfone and disulfoton sulfone, which are metabolites of disulfoton, by GC/MS. As a result of investigation of 300 samples of crops, dimetonthiol sulfone was detected in the range of 0.22-1.6 mug/g and disulfoton sulfone was detected in the range of 0.002-0.54 mug/g in turnip, turnip greens and cauliflower. The recoveries of disulfoton and its metabolites fortified at the levels of 1.0 mug/g and 10.0 mug/g were more than 90 %. The detection limit of dimetonthiol sulfone was 0.01 mug/g and those of disulfoton and disulfoton sulfone were 0.001 mug/g