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Determination of methyl parathion (0.0-dimethyl- (p-nitrophenyl) -thiophosphoric acid ester) and metabolites in animal material and in feed

Kirchner, K.; Berge, H.

Archiv für Experimentelle Veterinarmedizin 29(5): 643-647

1975

ISSN/ISBN: 0003-9055
PMID: 1230101
Document Number: 96221
A new thin-layer chromatography method was developed to detect parathion-methyl (0.0-dimethyl-0-p-nitrophenyl phosphorothioate) and its metabolite methyl-paraoxon and the degradation produce p-nitrophenol in samples of animal and plant origin. Coupling with Bratton-Marshall reagent, as used in colorimetry, was employed to detect the compounds on the chromatography plate. Pretreatment of the samples was simplified by preparing a crude extract and separating unwanted substances from the pesticide compounds by thin-layer chromatography.

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