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全自动固相萃取结合在线凝胶色谱气质联用仪测定饮用水中15种农药残留

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摘要 目的采用全自动固相萃取(ASPE)结合在线凝胶色谱-气相色谱质谱联用仪(GPC-GC/MS),建立饮用水中15种农药残留的快速检测方法。方法水样中农药残留通过用二氯甲烷和乙酸乙酯活化过的固相萃取柱萃取,再用二氯甲烷和乙酸乙酯洗脱浓缩后,以正己烷复溶,通过GPC-GC/MS检测。结果15种农药的检出限和定量限分别为0.31~1.78μg/L及1.0~6.0μg/L,在各自考察浓度范围内线性关系良好(r值均>0.998),加标回收率为70.5%~107.5%,相对标准偏差(RSD)为2.1%~8.7%。结论该方法可实现快速、自动化检测,重现性好,适用于对饮用水中多种农药残留的快速检测。
出处 《江苏预防医学》 CAS 2023年第5期579-581,共3页 Jiangsu Journal of Preventive Medicine
基金 常州市“十四五”卫生健康高层次人才培养工程(拔尖)(2022CZBJ099) 常州市应用基础研究计划(中资助)(CJ20200105)。
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