液相色谱法测定大豆和土壤中萘乙酸钠残留量  

Detection of Sodium Naphthalene Acetate Residues in Soybean and Soil by LC

作　　者：刘磊[1] 邵辉[1] 张玉婷[1] 李辉[1] 李娜[1] 郭永泽[1] 

机构地区：[1]天津市农业科学院中心实验室,天津300381

出　　处：《农药》2011年第11期827-828,836,共3页Agrochemicals

摘　　要：【目的】为了研究萘乙酸钠在大豆上的残留消解动态情况，建立了大豆和土壤中萘乙酸钠的液相色谱检测方法。【方法】采用乙腈和水混合溶剂提取，液液分配净化后采用液相色谱测定。【结果】萘乙酸钠在其线性范围内，线性关系良好，在0．01、0．10mg／kg两个质量分数水平进行了添加回收率试验，回收率80．5％-103．4％，相对标准偏差3．7％-9．8％。【结论】该方法操作简便，净化效果好，灵敏度、准确度和精密度均符合农药残留检测技术的要求。[Aims] To study the sodium naphthalene acetate residue degradation dynamics in soybean, a method for detecting its residues in soybean and soil by LC was established. [Mothods] Mixture of acetonitrile and water was used as extracting solution, and LC determination took place after samples had been purified by liquid- liquid extraction. [Results] Good linear relativity was found in the linear detection range of target pesticide. The 0.01 and 0.10 mg/kg standard concentrations of sodium naphthalene acetate were added to study the recovery of method, and recoveries of 80.5 and 103.4% were calculated with relative standard deviation of 3.7 and 9.8%, respectively. [Conclusions] The method with sensitivity, accuracy and precision established in this study conformed to the requests of general pesticides residues detection technologies.

关 键 词：萘乙酸钠 萘乙酸 土壤 大豆 残留分析 

分 类 号：TQ450.263[化学工程—农药化工]