| 气相色谱-串联质谱法测定牛奶中20种有机氯农药残留 |
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| 引用本文： | 刘毅,郑国灿,王晶,陈冬东,朱美文,彭光宇,曹淑瑞,王国民.气相色谱-串联质谱法测定牛奶中20种有机氯农药残留[J].检验检疫科学,2012,22(4):38-45. |
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| 作者姓名： | 刘毅 郑国灿 王晶 陈冬东 朱美文 彭光宇 曹淑瑞 王国民 |
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| 作者单位： | 1. 重庆出入境检验检疫局重庆市进出口食品安全工程技术研究中心,重庆,400020
2. 中国检验检疫科学研究院 |
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| 基金项目： | 质检公益性行业科研项目，重庆市科委科研项目 |
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| 摘 要： | 建立了牛奶中20种有机氯农药残留的气相色谱-串联质谱检测方法。样品采用正己烷-丙酮混合溶剂提取,凝胶渗透色谱和弗罗里硅土固相萃取联合净化,气相色谱-串联质谱测定。标准溶液在4μg/L-400μg/L范围内线性关系良好;方法的定量限为0.8μg/kg。20种有机氯农药在3个水平（0.8、2.0、10.0μg/kg）的加标回收率为62.2%-103.8%,相对标准偏差（RSDs）为3.4%-13.1%。该分析方法稳定可靠,灵敏度高,适合牛奶中多种有机氯农药残留量的检测。
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| 关 键 词： | 气相色谱-串联质谱 牛奶 有机氯农药 残留量 |
Determination of 20 Organochlorine Pesticides Residues in Milk by Gas Chromatography-Tandem Mass Spectrometry |
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| Liu Yi,Zheng Guocan,Wang Jing,Chen Dongdong,Zhu Meiwen,Peng Guangyu,Cao Shurui,Wang Guomin.Determination of 20 Organochlorine Pesticides Residues in Milk by Gas Chromatography-Tandem Mass Spectrometry[J].Inspection and Quarantine Science,2012,22(4):38-45. |
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| Authors: | Liu Yi Zheng Guocan Wang Jing Chen Dongdong Zhu Meiwen Peng Guangyu Cao Shurui Wang Guomin |
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| Institution: | 1.Chongqing Entry-Exit Inspection and Quarantine Bureau,Chongqing Import and Export Food Safety Engineering Technology Research Center,Chongqing,400020; 2.Chinese Academy of Inspection and Quarantine) |
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| Abstract: | A gas chromatography-tandem mass spectrometry（GC-MS /MS） method was developed for the determination of 20 organochlorine pesticides residues in milk.The samples were extracted by mixed solvent of n-hexene and acetone,purified by gel permeation chromatography and magnesiumtrisilicate solid phase extraction column,then detected by GC-MS/MS.The calibration curves showed good linearity in the range of 4μg/L-400μg /L.The limits of detection were 0.8μg/kg.The recoveries of 20 organochlorine pesticides in milk at the three spiked levels of 0.8,2,10μg/kg were in the range of 62.2%-103.8% with the relative standard deviations（RSDs） of 3.4%-13.1%.The method is stable and reliable,high sensitivity. |
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| Keywords: | Gas Chromatography-Tandem Mass Spectrometry Milk Organochlorine Pesticides Residues |
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