Residue Analysis of Hexaflumuron in Cotton by LC-MS/MS
Yongli Liu, Ding Qi, Jia Fu-yan, Mingyu Duan
Abstract
Yongli Liu, Ding Qi, Jia Fu-yan, Mingyu Duan
Abstract
[目的]建立液相色谱串联质谱法快速检测棉花中氟铃脲残留的分析方法。[方法]样品用乙腈为提取液,液液萃取和弗罗里硅土净化,液相色谱-串联质谱检测。[结果]棉叶中2种添加质量分数的平均回收率分别为77.9%、77.9%,变异系数分别为7.3%、4.2%;棉籽中2种添加质量分数的平均回收率分别为110.2%、103.7%,变异系数分别为5.3%、2.6%。仪器最小检出量为2.0×10-11g。[结论]该方法简单可靠,符合农药残留分析要求,可用于棉花中氟铃脲的残留检测。
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[目的]建立液相色谱串联质谱法快速检测棉花中氟铃脲残留的分析方法。[方法]样品用乙腈为提取液,液液萃取和弗罗里硅土净化,液相色谱-串联质谱检测。[结果]棉叶中2种添加质量分数的平均回收率分别为77.9%、77.9%,变异系数分别为7.3%、4.2%;棉籽中2种添加质量分数的平均回收率分别为110.2%、103.7%,变异系数分别为5.3%、2.6%。仪器最小检出量为2.0×10-11g。[结论]该方法简单可靠,符合农药残留分析要求,可用于棉花中氟铃脲的残留检测。
Key concepts: Residue (chemistry), Chemistry, Toxicology, Biology, Organic chemistry