Studies on the Behavior of Thiocarbamate Herbicides in Soil

Part I. Gas Chromatographic Determination of 4-Chlorobenzyl N, N-Diethylthiolcarbamate (Benthiocarb) in Soil

Abstract

A gas-liquid chromatographic method using flame for determining was developed for determining the residues of benthiocarb in soils. Benthiocarb in soils was removed by steam-distillation, followed by liquid chromatography on active charcoal. The lower limit for detection of pure material was 0.002μg and that residues in soil was 0.02ppm. Recoveries for three soils ranged from 70.5 to 93.1% (average), when treated with three level of 0.32, 3.18 and 31.8ppm. Recoveries at the level of 0.32ppm were observed to be low.