| GPC-GC-MS法测定大豆中的敌敌畏 |
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| 引用本文： | 詹重清.GPC-GC-MS法测定大豆中的敌敌畏[J].广州化工,2014(12):129-130. |
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| 作者姓名： | 詹重清 |
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| 作者单位： | 福建省产品质量检验研究院,福建福州350002 |
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| 摘 要： | 基于凝胶渗透色谱技术(GPC)的去油酯效果,建立了气相色谱(GC)-质谱(MS)选择离子法测定大豆中的敌敌畏残留量的检测方法。样品经凝胶渗透色谱净化后,经过自动快速浓缩后直接用GC-MS进行检测并确证,最后用外标法进行定量。方法检出限为0.002 mg/kg,加标水平为0.05 mg/kg时,样品平均回收率为89%,相对标准偏差为3.1%。该方法操作简单,净化效果好,具有良好的回收率、精密度,而且检出限低,适合于日常大豆中敌敌畏残留量的检测。
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| 关 键 词： | 敌敌畏 大豆 GPC GC-MS |
The Determination of Dichlorvos by GPC-GC-MS Method |
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| ZHAN Chong-qing.The Determination of Dichlorvos by GPC-GC-MS Method[J].GuangZhou Chemical Industry and Technology,2014(12):129-130. |
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| Authors: | ZHAN Chong-qing |
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| Affiliation: | ZHAN Chong-qing (Fujian Inspection and Research Institute for Product Quality, Fujian Fuzhou 350002, China) |
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| Abstract: | The analysis method of Gel Permeation Chromatography （ GPC） purification and Gas Chromatography -Mass Spectrometry （ GC-MS） method for the determination of dichlorvos in soybean was established.Sample was purified by GPC, and analyzed by GC -MS with external standard method for quantitative.The detection limit was 0.002 mg/kg.At the standard level of 0.05 mg/kg, the average recovery rate was 89%, with the RSD of 3.1%.The method had the advantages of simple operation , good purifying effect , high recovery rate and precision and low limit , which can be used for the determination of dichlorvos in soybean. |
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| Keywords: | GPC GC-MS dichlorvos soybean GPC GC-MS |
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