Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine] 1991-05-01

[Gas chromatographic analysis of aldicarb and its metabolites in urine].

X L Dai

Index: Zhonghua Yu Fang Yi Xue Za Zhi 25(3) , 136-8, (1991)

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Abstract

A method is described for the analysis of aldicarb and its metabolites in urine by GC/FPD. The sample was concentrated with activated charcoal-Florisil column chromatography, eluted by dichloromethane-acetone (1:1v/v). The aldicarb, aldicarb sulfoxide in the eluted solution were oxidized by oxidizing reagent into aldicarb sulfone. The concentration of aldicarb sulfone was analyzed by GC/FPD. The detection limit of 0.0024 mg/L and coefficient of variation of 2.4%-7.4% were achieved. Mean recovery rates were 90.9%, 86.6%, 92.6% for aldicarb, aldicarb sulfoxide and aldicarb sulfone, respectively.