| 农产品中多种农药残留的气相色谱-质谱联用法测定 |
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| 引用本文： | 郭永泽,张玉婷,李娜,刘磊,邵辉,李辉,程奕. 农产品中多种农药残留的气相色谱-质谱联用法测定[J]. 分析测试学报, 2010, 29(12). DOI: 10.3969/j.issn.1004-4957.2010.12.013 |
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| 作者姓名： | 郭永泽 张玉婷 李娜 刘磊 邵辉 李辉 程奕 |
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| 作者单位： | 天津市农业科学院中心实验室; |
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| 基金项目： | 天津市应用基础及前沿技术研究计划资助项目，天津市农业科技成果转化与推广项目，国家科技重大专项子项目，天津市农业科学院院长基金资助项目 |
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| 摘 要： | 建立了同时检测大白菜、苹果、大豆和豆沙中211种农药残留的气相色谱-质谱联用法。农药经乙腈-水溶液匀质提取,C18固相萃取柱净化和PSA固相萃取柱净化,洗脱液浓缩后用丙酮-正己烷(1∶1)溶解,经HP-5MS石英毛细管柱分离后,用气相色谱-质谱联用仪采用选择离子扫描方式测定,外标法定量。结果表明211种农药在0.05~0.5 mg/L范围内线性关系良好,相关系数为0.975~0.998,其定量下限为0.002~0.020 mg/kg。在0.1 mg/kg加标水平下,211种农药在大白菜、苹果、大豆和豆沙中的平均回收率为67%~117%,相对标准偏差为1.1%~23.8%。该方法操作简单、净化效果好、灵敏度高,适用于蔬菜、水果等农产品中多种农药残留的测定。
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| 关 键 词： | 农产品 农药多残留 气相色谱-质谱联用 固相萃取 |
Multi-residue Determination of Pesticides in AgriculturalProducts by Gas Chromatography-Mass Spectrometry |
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| GUO Yong-ze,ZHANG Yu-ting,LI Na,LIU Lei,SHAO Hui,LI Hui,CHENG Yi. Multi-residue Determination of Pesticides in AgriculturalProducts by Gas Chromatography-Mass Spectrometry[J]. Journal of Instrumental Analysis, 2010, 29(12). DOI: 10.3969/j.issn.1004-4957.2010.12.013 |
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| Authors: | GUO Yong-ze ZHANG Yu-ting LI Na LIU Lei SHAO Hui LI Hui CHENG Yi |
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| Affiliation: | GUO Yong-ze,ZHANG Yu-ting,LI Na,LIU Lei,SHAO Hui,LI Hui,CHENG Yi(Tianjin Academy of Agricultural Sciences,Central Laboratory,Tianjin 300381,China) |
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| Abstract: | A gas chromatography-mass spectrometric(GC-MS) method was established for the simultaneous detection of 211 pesticides residues,including 11 pyrethroid insecticides,52 organophosphorus pesticides,18 organochlorine pesticides,11 carbamate pesticides,8 other pesticides,59 herbicides,2 plant growth regulators,40 fungicides and 10 acaricides,in leeks,apples,soybeans and bean paste.The drugs were extracted by mixture of acetonitrile and water,purified by C18 solid-phase extraction column and PSA solid-phase extr... |
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| Keywords: | agricultural products pesticide residues gas chromatography-mass spectrometry(GC-MS) solid phase extraction(SPE) |
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