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液相色谱串联质谱法检测草铵膦、草甘膦及其代谢物在水和土壤中的残留

文献类型: 中文期刊

作者: 姬乐园 1 ; 王平平 1 ; 朱丽珍 1 ; 毛连纲 1 ; 张兰 1 ; 蒋红云 1 ; 刘新刚 1 ;

作者机构: 1.中国农业科学院植物保护研究所,植物病虫害综合治理全国重点实验室

关键词: 水和土壤;草铵膦;草甘膦;代谢物;UHPLC-MS/MS;残留检测

期刊名称: 植物保护

ISSN: 0529-1542

年卷期: 2024 年 50 卷 002 期

页码: 235-239

收录情况: 北大核心 ; CSCD

摘要: 利用超高效液相色谱-串联质谱仪(UHPLC-MS/MS),结合固相萃取净化建立了在水和土壤中同时快速测定草甘膦、草铵膦及其6种代谢物的多残留分析方法.前处理采用Oasis MCX和Oasis MAX固相萃取柱提取,2%甲酸甲醇-水(体积比为1∶1)洗脱,旋干后0.1%氨水定容,UHPLC-MS/MS检测.方法的线性范围为0.02~0.5 mg/L;在水中添加水平为0.000 1 mg/L和0.001 mg/L时,草甘膦、草铵膦及其代谢物的回收率为72.8%~94.2%,RSD为2.3%~16.1%;土壤中添加水平为0.001 mg/kg和0.01 mg/kg时,草甘膦、草铵膦及其代谢物的回收率为70.6%~88.5%,RSD为3.6%~12.8%.本方法准确、灵敏、全面,适用于草甘膦、草铵膦及其代谢物在水土环境中的残留检测及监测.

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