期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2009

35

2

195-199

农业部农药登记项目

本校为第一机构

为了评价霜脲氰的环境安全性,指导含霜脲氰类农药的科学合理使用,建立了霜脲氰在葡萄及其土壤中的残留分析方法.葡萄和土壤样品分别用丙酮和乙酸乙酯提取,经弗罗里硅土柱净化,高效液相色谱(HPLC)测定,霜脲氰的最小检测量为3.0×10~(-10)g,在葡萄和土壤中的最低检出限为1.5×10~(-3)和3.0×10~(-3)mg/kg.当添加水平为0.05～1.0 mg/kg时,霜脲氰在土壤中的平均回收率为83.32%～104.22%,变异系数为5.34%～6.11%;在葡萄样品中的平均回收率为80.85%～98.84%,变异系数为3.30%～7.69%.

A method for determining cymoxanil residue in grape and soil was established to value the environment security of cymoxanil, and give a reasonable guidance for using it. Residue in both grape and soil were extracted by acetone and acetic separately, then purified by a florisil column, subsequently detected with HPLC. The minimum detectable amount of cymoxanil were 3.0×10^-10 g. Furthermore, the lowest detectable concentrations in grape and soil were 1.5×10^--3 mg/kg and 3.0×10^--3 mg/kg, respectively. When the additive amount of cymoxanil we...