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投稿时间：2014-09-30
投稿时间：2014-09-30
中文摘要: 建立了 GC-MS 法测定茶叶中常见的 3 种有机磷农药残留分析方法。茶叶样品采用乙腈浸泡，超声振荡，活性 炭吸附色素， 氮吹仪浓缩，NH2 固相萃取柱净化后供气质联用仪检测分析。 本方法对 3 种有机磷农药的回收率范围为
84.23 %～87.55 %，检出限为 0.020 mg/kg～0.035 mg/kg，相对偏差（RSD）为 4.2 %~5.1 %。
Abstract:The determination detection method of three common sorts of organophosphorus pesticide residues in tea was established by GC-MS. The tea sample was soaked with acetonitrile， oscillated by ultrasonic unit， used charcoal for absorbed pigments， concentrated by nitrogen analyzer， purified through NH2 SPE， then detected and analyzed via GC-MS. The results showed that the recoveries of these three common pesticides were between 84.23 % -87.55 % ， the method detection limits were in the ranged of 0.020 mg/kg -0.035 mg/kg， and the relative standard deviations（RSDs） were in the ranged of 4.2 %-5.1 %.
文章编号：201602028 中图分类号： 文献标志码：A
基金项目:四川省教育厅重点项目（12ZB078，13ZA0123）；四川理工 学院研究生创新基金项目（y2013028）
| Author Name | Affiliation |
| XU Chen-xi， FU Da-you， TAN Wen-yuan ，WANG Ju | College of Materials and Chemical Engineering， Sichuan University of Science & Engineering， Zigong 643000， Sichuan，China |
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