| 固相萃取-气相色谱-质谱联用法测定食品中丙环唑残留量 |
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| 引用本文： | 何强,李建华,孔祥虹,乐爱山,董会生,赵洁.固相萃取-气相色谱-质谱联用法测定食品中丙环唑残留量[J].理化检验(化学分册),2010(2). |
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| 作者姓名： | 何强 李建华 孔祥虹 乐爱山 董会生 赵洁 |
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| 作者单位： | 陕西出入境检验检疫局;西安理工大学理学院; |
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| 基金项目： | 国家质检总局资助项目(2007B852) |
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| 摘 要： | 提出了18种食品基质中丙环唑残留量的气相色谱-质谱联用分析方法。样品中丙环唑利用乙腈或乙酸乙酯提取,C18和活性炭串联固相萃取柱净化,采用DB-1701弹性毛细管色谱柱进行分离。采用气相色谱-质谱电子轰击电离源和选择离子监测模式进行测定。在0.02～5.0mg.L-1范围内丙环唑标准溶液的峰面积与浓度呈线性关系(r=0.9995),在0.01,0.02,0.05mg.kg-13个添加水平下丙环唑的回收率在70%～115%之间,相对标准偏差(n=6)小于10.2%,检出限(3S/N)为0.004mg·kg-1。
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| 关 键 词： | 气相色谱-质谱联用 固相萃取 丙环唑 食品 |
GC-MS Determination of Residual Amount of Propiconazole in Foodstuffs with Separation by Solid Phase Extraction |
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| HE Qiang,LI Jian-hua,KONG Xiang-hong,YUE Ai-shan,DONG Hui-sheng,ZHAO Jie.GC-MS Determination of Residual Amount of Propiconazole in Foodstuffs with Separation by Solid Phase Extraction[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2010(2). |
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| Authors: | HE Qiang LI Jian-hua KONG Xiang-hong YUE Ai-shan DONG Hui-sheng ZHAO Jie |
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| Institution: | 1.Shaanxi Entry-Exit Inspection and Quarantine Bureau/a>;Xi'an 710068/a>;China/a>;2.College of Science/a>;Xi'an University of Science and Engineering/a>;Xi'an 710054/a>;China |
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| Abstract: | Residual amounts of propiconazole,a bactericide,in foodstuffs of 18 different kinds of matrixes were determined by GC and MS in hyphenation.The sample was extracted with acetonitrile or ethyl acetate according to its variety,and the propiconazole in the extract was purified by passing through C18 SPE column and active carbon column in succession.In the GC-MS analysis,DB-1701 capillary chromatographic column was used for separation,and modes of electron bombardment ionization ion source(EI)and selective ion ... |
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| Keywords: | GC-MS in hyphenation Solid phase extraction Propiconazole Foodstuffs |
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