| 气相色谱-负化学离子源质谱联用法测定植物性产品中多组分农药残留量 |
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| 引用本文： | 郑向华,方恩华,吴敏,杜凤君,徐敦明.气相色谱-负化学离子源质谱联用法测定植物性产品中多组分农药残留量[J].分析试验室,2009,28(9). |
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| 作者姓名： | 郑向华 方恩华 吴敏 杜凤君 徐敦明 |
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| 作者单位： | 厦门出入境检验检疫局技术中心,厦门,361026 |
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| 基金项目： | 厦门出入境检验检疫局科技计划 |
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| 摘 要： | 通过气相色谱-负化学离子源质谱技术建立了同时检测18种农药残留的分析方法. 样品经正己烷和丙酮混合溶剂及正己烷提取后, 用活性炭-中性氧化铝混合小柱净化, 再由气相色谱-负化学离子源质谱分时段选择离子监测技术进行测定. 一次进样就能得到18种农药残留结果;各农药在0.005、 0.01和0.02 mg/kg 3个添加水平的平均回收率在70.2%～115.3%之间, RSD<12%, 检出限为0.01～6 μg/kg, 方法可应用于8种植物性产品中的农残检测.
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| 关 键 词： | 气相色谱-负化学离子源质谱 选择离子监测 农药 植物性产品 |
Multiresidue determination of pesticide residues in vegetable food by gas chromatography-negative chemical ionization mass spectrometry |
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| ZHENG Xiang-hua,FANG En-hua,WU Min,DU Feng-jun,XU Dun-ming.Multiresidue determination of pesticide residues in vegetable food by gas chromatography-negative chemical ionization mass spectrometry[J].Chinese Journal of Analysis Laboratory,2009,28(9). |
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| Authors: | ZHENG Xiang-hua FANG En-hua WU Min DU Feng-jun XU Dun-ming |
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| Institution: | Inspection and Quarantine Technical Center;Xiamen Entry-Exit Inspection and Quarantine Bureau;Xiamen 361026 |
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| Abstract: | A gas chromatography(GC)-negative chemical ionization mass spectrometry(NCI-MS) method was proposed for analyzing 18 kinds of pesticides in vegetable food.Pesticide residues were extracted from samples with acetone and n-hexane.A SPE column(ENVI-Carb 0.25 g,3 mL) with 0.5 g neutral aluminum oxide on the top of the cartridge was used for purification.Analytical screening was determined by the technique of gas chromatography-negative chemical ionization mass spectrometry-selected ion monitoring.The recoveries... |
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| Keywords: | Gas chromatography-negative chemical ionization mass spectrometry Selected ion monitoring Pesticide residues Vegetable food |
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