植物源复杂基质中70种有机磷农药残留分析
目的 建立鲜香菇、大葱、韭菜、生姜等复杂基质中70种常用有机磷农药的SPE-气质联用分析方法。方法 样品经乙腈提取后, 用Envi-Carb II/PSA(石墨化炭黑/乙二胺基-N-丙基)复合小柱净化,最后用GC-MS测定。结果 在0.01~1.0 mg/kg添加浓度范围内平均回收率为60%~119%, 相对标准偏差(RSD)为1.5%~17.8%。其中68种有机磷农药的定量限为0.01 mg/kg, 灭线磷和特丁硫磷为0.005 mg/kg。结论 该研究符合残留分析和各国残留限量要求, 对保障食品安全, 促进食品出口具有重要的意义。
Objective To establish a method for the detection of 70 organophosphorous pesticides in multi-matrix such as fresh mushroom, welsh onion, chinese chive, ginger by solid phase extraction(SPE)-gas chromatography-tandem mass spectrometry. Methods The samples were extracted with acetonitrile and then purified by an Envi-Carb/PSA-solid phase extraction(SPE)column. The analytes were determined by gas chromatography-mass spectrometry. Results The recoveries were 60%~119% at the spiked levels of 0.01 (0.005)~1.0 mg/kg and the relative standard deviations(RSDs)were in the range of 1.5%~17.8%. The limits of quantitations (LOQs) of ethoprophos and terbufos were 0.005 mg/kg and others were 0.01 mg/kg. Conclusion The method can meet the pesticide residue limit requirements for all countries. This method has an important significance for ensuring food safety and stimulating food export.
标题：植物源复杂基质中70种有机磷农药残留分析
英文标题：Determination of 70 organophosphorous pesticides in complex matrix of natural resources of plants
作者：
周昱 厦门出入境检验检疫局
刘艳英 厦门出入境检验检疫局
庄丽丽 厦门出入境检验检疫局
张志刚 厦门出入境检验检疫局
郑向华 厦门出入境检验检疫局
徐敦明 厦门出入境检验检疫局
中文关键词:固相萃取,气质联用,农药残留,有机磷,复杂基质,
英文关键词:solid phase extraction (SPE),gas chromatography-tandem mass spectrometry,pesticide residue,organophosphorous,complex matrix,
发表日期：2012-09-27
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