摘要
[目的]应用气相色谱质谱联用仪建立了农药中12种常见非法添加除草剂成分的快速筛查方法,并对农药产品进行了分析。[方法]可湿性粉剂和乳油2种剂型的除草剂样品经丙酮或甲醇溶解,提取后采用GC-MS检测。[结果]12种常见非法添加除草剂在0.05~10mg/L质量浓度范围内具有良好的线性关系,相关系数均大于0.995,定量限均小于1.0mg/kg,目标物在农药基质中的回收率为90.8%~126.4%,相对标准偏差为1.0%~10.8%。[结论]该方法分析快速、灵敏、操作简单,测定结果具有较高的准确度和精密度,适用于除草剂中非法添加成分的筛查和定量测定。
[Aims] To establish a method for the simultaneous detection of 12 illegally added ingredients in herbicide products by gas chromatography-mass spectrometry (GC-MS) and analyze the pesticide samples.[Methods] The herbicides of wettable powder and emulsifiable concentrate were extracted with methanol or acetone, then detected by GC-MS.[Results] Twelve illegally added herbicides showed good linearity in the ranges of 0.05-10 mg/L, the correlation coefficients were higher than 0.995, the limits of detection were less than 1.0 mg/kg. The average recoveries were 90.8-126.4%, and the relative standard deviations were 1.0-10.8%.[Conclusions] The method is simple, rapid, sensitive and precision accuracy, and can be applied to screening and analysis ofillegally added ingredients in herbicides.
作者
李建兵
王光英
张捷
谷小凤
王婷
翟钰
王建萍
刘利萍
王晓滨
LI Jian-bing;WANG Guang-ying;ZHANG Jie;GU Xiao-feng;WANG Ting;ZHAI Yu;WANG Jian-ping;LIU Li-ping;WANG Xiao-bin(Qingdao Testing Research Institute of Product Quality,Qingdao 266061,Shandong,China;National Quality Supervision & Testing Center of Marine Fine Chemical and Biological Products,Qingdao 266061,Shandong,China;Qingdao Institute for Food and Drug Control,Qingdao 266071,Shandong,China;Qingdao Institute of Standardization,Qingdao 266101,Shandong,China)
出处
《农药》
CAS
CSCD
北大核心
2019年第5期347-349,共3页
Agrochemicals
基金
山东质监局科技项目(2017KY32Z00)