Research on How to Determine the Residue of Atrazine in the soil

摘要

Studies on the residue of atrazine in the soil have recently aroused great concern. This article studies the methods of determining the residue of atrazine in the soil, and thus helps solve the problems of pesticide residue. Use methanol aqueous solutions (9:1) to extract the atrazine in the soil. Concentrate the methanol, then chloroform extracted. After concentrating to a defined volume, use GC-14C gas chromatographic and FID detector to determine the residue of atrazine in the soil. This research has found that the recovery rate of residue atrazine in the soil reaches 85﹪-90﹪, and the relative standard difference (RSD) is 2.3％-4.9％.