| 液液萃取-气相色谱-质谱联用法测定饮用水中19种农药残留量 |
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| 引用本文： | 张雪梅,杨华梅.液液萃取-气相色谱-质谱联用法测定饮用水中19种农药残留量[J].理化检验(化学分册),2011(7). |
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| 作者姓名： | 张雪梅 杨华梅 |
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| 作者单位： | 泰州市疾病预防控制中心; |
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| 摘 要： | 提出了液液萃取富集-气质联用法测定饮用水中19种农药的残留量。样品用二氯甲烷萃取3次(20,10,10mL),萃取液合并后旋转蒸发至1.0mL,分取1.0μL进样,进行气相色谱-质谱分析。用HP-5MS毛细管柱分离及电子轰击离子源,用离子检测扫描模式做质谱测定。用菲-d_(10)作内标,峰面积定量。19种农药在一定浓度范围内呈线性,检出限(3S/N)为0.002～0.10mg·L~(-1)之间,回收率在81.1%～103.0%之间,相对标准偏差(n=6)为0.25%～7.7%。
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| 关 键 词： | 气相色谱-质谱联用法 液液萃取 农药 饮用水 |
GC-MS Determination of Residual Amounts of 19 Pesticides in Drinking Water with Enrichment by Liquid-Liquid Extraction |
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| ZHANG Xue-mei,YANG Hua-mei.GC-MS Determination of Residual Amounts of 19 Pesticides in Drinking Water with Enrichment by Liquid-Liquid Extraction[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2011(7). |
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| Authors: | ZHANG Xue-mei YANG Hua-mei |
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| Institution: | ZHANG Xue-mei,YANG Hua-mei (Taizhou Municipal Center for Control and Prevention of Diseases,Taizhou 225300,China) |
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| Abstract: | |
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| Keywords: | GC-MS Liquid-liquid extraction Pesticides Drinking water |
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