摘要
利用气相色谱仪,建立了残杀威在桑叶中残留量的分析方法。样品以乙腈提取,毛细管柱气相色谱法测定。残杀威标准曲线的线性范围为0.1～20mg·L-1,线性相关系数为0.9996,残杀威在桑叶中最低检测浓度为0.05mg·kg-1,平均回收率在81.23%～102.54%之间,变异系数为5.48%～6.42%,符合农药残留测定要求。
A method for determination of propoxur residues in mulberry leaf was reported. The residues of propoxur were extracted with acetonitrile, and determined by GC. The results showed that the recoveries of the method were 81.23% to 102.54% with RSD being 5.48% to 6.42%, the linear range of working curve was 0.1 to 20 mg·L^-1 with a linear correlation of 0.999 6. The minimum detective concentration of propoxur in mulberry leaf was 0.05 mg·kg^-1.
出处
《现代农药》
CAS
2009年第2期36-38,共3页
MODERN AGROCHEMICALS
关键词
残杀威
桑叶
气相色谱法
残留分析
propoxur
mulberry leaf
gas chromatography
residue analysis
