超高效液相色谱串联质谱测定大豆和土壤中精喹禾灵的残留分析方法  

Determination of Quizalofop-p-ethyl in Bean and Soil by LC-ESI-MS/MS

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

机构地区：[1]农业部农药质量监督检验测试中心(天津),天津300061

出　　处：《农药科学与管理》2011年第8期37-40,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测定大豆和土壤中精喹禾灵残留分析方法,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)定量法检测精喹禾灵。结果表明,该方法对精喹禾灵的最低检出限LOD为0.65μg/kg。在0.649～324.600μg/L线性范围内,相关系数为0.999 9,回收率在82.42～99.61%之间,相对标准偏差<5%(n=5)。A LC-ESI-MS/MS method was in bean and soil. This method is found developed for the determination of quizalofop-p-ethyl to be rapid, accurate and high sensitivity for the determination of quizalofop-p-ethyl in bean 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 quizalofop- p-ethyl were 0.651μg/kg.The linear ranges were 0.694-324.600μg/L with correlation coefficients above 0.999 9. The mean recoveries were between 82.42% and 99.61%.The RSD was less than 5%（n=5）.

关 键 词：精喹禾灵 超高效液相色谱-串联质谱 大豆 土壤 残留 

分 类 号：S481.8[农业科学—农药学]