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Biomarkers ; 4(5): 342-50, 1999.
Article in English | MEDLINE | ID: mdl-23902354

ABSTRACT

This paper describes the identification of a human metabolite of propetamphos ((E-O-2-isopropylcarbonyl-1-methylvinyl-O-methylethylphosphoramidothioate), formed by the hydrolytic cleavage of the enol-vinyl-phosphate bond, and the development of an analytical method suitable for biological monitoring of propetamphos exposure. The metabolite has been detected in the urine of exposed workers but not in that of control subjects. The analytical method involves azeotropic distillation of the urine with acetonitrile, followed by derivatization with pentafluorobenzyl bromide and analysis using gas chromatography with flame photometric detection.

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