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, 69 (4), 591-3

Determination of Residues of Alachlor and Its Metabolite in Corn, Soybeans, and Potatoes as heptafluorobutyryl-2,6-diethylaniline

  • PMID: 3745082

Determination of Residues of Alachlor and Its Metabolite in Corn, Soybeans, and Potatoes as heptafluorobutyryl-2,6-diethylaniline

W H Newsome et al. J Assoc Off Anal Chem.

Abstract

Alachlor [2-chloro-2',6'-diethyl-N-(methoxymethyl)acetanilide] was determined by hydrolysis to 2,6-diethylaniline with 6N HCl and quantitation of the heptafluorobutyryl derivative by gas chromatography with electron capture detection. 2,6-Diethylaniline was isolated from the hydrolysate by steam distillation, derivatized with heptafluorobutyric anhydride, and the derivative was purified by chromatography on silicic acid with 60% toluene in hexane as eluant. Recoveries from potatoes, soybeans, and corn spiked at levels from 3 to 26 ppb averaged 81, 90, and 96% respectively.

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