Abstract
A simple method for the determination of dinoseb in agricultural products by capillary GC without methylation was developed. Dinoseb was extracted from grains and beans with acetonitrile, and the solution was washed with hexane. In the case of fruits and vegetables, dinoseb was extracted with acetone-hexane mixture (1:1), and the solution was washed with water. The extract was cleaned up with a silica gel column, and subjected to NPD-GC with a DB-1 widebore capillary column. Recoveries of dinoseb from agricultural products fortified with 0.05ppm were 79.2-87.8%, and the limit of detection was 0.005ppm.
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