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  • Gas chromatographic determination of aldicarb and its metabolites in urine.

Gas chromatographic determination of aldicarb and its metabolites in urine.

Journal of chromatography (1991-04-12)
D X Lian, L Yang, W X Yun, S Hua, C Hu
ABSTRACT

A method is described for the determination of aldicarb and its metabolites (the sulphoxide and sulphone) in urine by gas chromatography with flame photometric detection (GC-FPD). The sample was concentrated with a column containing activated charcoal and Florisil, and then eluted with dichloromethane-acetone (1:1, v/v). The aldicarb and aldicarb sulphoxide in the eluate solution were oxidized to aldicarb sulphone and the total sulphone concentration was determined by GC-FPD after extraction with dichloromethane and clean-up with an activated charcoal column. The detection limit was 0.0024 mg/l. The mean recoveries from spiked urine in the range 0.04-0.12 mg/l were 90.9%, 86.6%, 92.6% for aldicarb, aldicarb sulphoxide and aldicarb sulphone, respectively.

MATERIALS
Product Number
Brand
Product Description

Supelco
Aldicarb-sulfoxide, PESTANAL®, analytical standard
Pricing and availability is not currently available.
Supelco
Aldicarb-sulfone, PESTANAL®, analytical standard
Pricing and availability is not currently available.