毛磊红,杨宏伟,李殷

• 1:上海康识食品科技有限公司
• 2:清华苏州环境创新研究院
• 3:清华大学深圳研究生院

摘要(Abstract)：

目前国标中对新型农药的检测方法存在前处理较为繁琐，使用大量有机溶剂，检测限较高等问题，而SPELC-MS/MS检测方法具有前处理有机溶剂消耗较少，过程简单且检测限更低的优点。因此本研究以目前使用较为普遍的稻瘟灵、仲丁威、吡虫啉、甲草胺和西玛津这五种农药为研究对象，通过农药残留检测标准曲线和方法检出限对固相萃取-液相-二级质谱（SPE-LC-MS/MS）方法性能进行评价，最终建立五种农药相应的SPE-LC-MS/MS检测方法，并利用此方法对水源水和水厂水进行调研，进一步研究水处理工艺对这五种农药的去除情况。结果表明SPE-LC-MS/MS检测方法可以满足五种农药在水源和饮用水中的检测需求。淮河流域某水源和珠江流域某水源及其沿岸水厂的水源水中稻瘟灵、甲草胺和西玛津是检出浓度较高的农药，最高分别可达到135.4、41.1和41.5ng/L。水厂处理工艺对稻瘟灵去除效果较好，其中碳滤工艺基本可以将其完全去除，而对吡虫啉则基本无去除效果。纳滤工艺对农药的截留效果较好，对稻瘟灵、吡虫啉、甲草胺和西玛津去除率分别为82.2%、27.4%、89.0%和66.8%。研究结果为农药的检测方法和去除方法提供了参考，膜过滤、臭氧-碳滤等深度处理技术与传统处理工艺相结合在水处理方面对农药有较好的去除效果，有着一定的应用潜力与价值。

关键词(KeyWords)： 农药;固相萃取-液相-二级质谱法(SPE-LC-MS/MS);水源水;水厂

Abstract:

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基金项目(Foundation):

作者(Author): 毛磊红,杨宏伟,李殷

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