The method was proposed for detecting the pesticide residues such as organophosphorus and carbamates by GC/MS/SIM.The method is rapid and highly sensitive for 15 pesticide residues.
目的建立土壤中吡虫啉、氯虫苯甲酰胺、氟虫腈及其代谢物等6种白蚁防治农药的高效液相色谱-串联质谱(HPLC-MS/MS)检测方法。方法样品经乙腈高速匀浆提取,甲醇和0.1%甲酸水为流动相进行梯度洗脱,以CAPCELL PAK C18色谱柱(100 mm×2.1...目的建立土壤中吡虫啉、氯虫苯甲酰胺、氟虫腈及其代谢物等6种白蚁防治农药的高效液相色谱-串联质谱(HPLC-MS/MS)检测方法。方法样品经乙腈高速匀浆提取,甲醇和0.1%甲酸水为流动相进行梯度洗脱,以CAPCELL PAK C18色谱柱(100 mm×2.1 mm,2μm)进行HPLC分离,以电喷雾电离串联质谱正、负离子多反应监测(MRM)模式扫描分析,外标法定量。结果 6种白蚁防治剂在1.00~500μg/L的范围内线性关系良好,相关系数R^2大于0.99,方法定量限范围为0.01~0.05 mg/kg,3个添加水平下的平均回收率范围为86.6%~97.4%,相对标准偏差(RSD)范围为3.62%~11.5%,完全满足日常检测的要求。结论该方法前处理简单、快速、灵敏度高、准确,非常适合于土壤中6种白蚁防治农药残留的快速检测及定量分析。展开更多
文摘The method was proposed for detecting the pesticide residues such as organophosphorus and carbamates by GC/MS/SIM.The method is rapid and highly sensitive for 15 pesticide residues.