葡萄和土壤中霜脲氰的残留分析方法  

Analytical methods of cymoxanil residue in both grape and soil

作　　者：刘明洋[1] 龚道新[1] 任竞[1] 孙毓临[1] 

机构地区：[1]湖南农业大学资源环境学院,湖南长沙410128

出　　处：《湖南农业大学学报（自然科学版）》2009年第2期195-199,共5页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：农业部农药登记项目

摘　　要：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 were 0.05-1.0 mg/kg, the average recoveries were 83.32%-104.22% and the coefficient of variations were 5.34%-6.11% for soil sample. For grape sample, the data were 80.85%-98.84 % and 3.30%-7.69%, respectively.

关 键 词：霜脲氰 葡萄 土壤 残留分析 

分 类 号：X592[环境科学与工程—环境工程]