超高效液相色谱串联质谱测定黄瓜和土壤中乙嘧酚磺酸酯残留量  

Determination of Bupirimate in Cucumber and Soil by LC-ESI-MS/MS

作　　者：李桂红[1] 赵瑞[1] 张东飞[1] 李二虎[1] 张武[1] 韩婷婷[1] 

机构地区：[1]农业部农药质量监督检验测试中心,天津300061

出　　处：《农药科学与管理》2012年第12期34-37,共4页Pesticide Science and Administration

摘　　要：建立超高效液相色谱-电喷雾串联四极杆质谱快速测定黄瓜和土壤中乙嘧酚磺酸酯残留的分析方法,该方法具有快速、准确、灵敏度高,检测限低等特点。样品经固相萃取净化,应用超高效液相色谱-电喷雾串联四极杆质谱仪选择反应监测(SRM)定量法检测乙嘧酚磺酸酯。结果表明,该方法对乙嘧酚磺酸酯的最低检出限LOD为7.734μg/kg。在7.552～241.675μg/L线性范围内,相关系数为0.996 7,回收率在85.30%～118.17%之间,相对标准偏差<10%(n=5)。A LC-ESI-MS/MS method was developed for the determination of bupirimate in cucum- ber and soil. This method is found to be rapid, accurate and high sensitivity for the determina tion of bupirimate in cucumber and soil. For clean-up and concentration solid phase extraction were used. The 2 agents were determined by LC-ESI-MS/MS and quantified with selected reaction monitoring （SRM） mode. Results, the detection limits （LOD） for bupirimate were 7.734μg/kg. The linear ranges were 7.552-241.675μg/L with correlation coefficients above 0.996 7. The mean recoveries were between 85.30% and 118.17%. The RSD 〈 10% （n=5）.

关 键 词：乙嘧酚磺酸酯 超高效液相色谱-串联质谱 黄瓜 土壤 残留 

分 类 号：S481.8[农业科学—农药学] O657.72[农业科学—植物保护]