| 固相萃取-气相色谱法测定农产品中灭蚁灵残留研究 |
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| 引用本文： | 何雨帆,韦莹军,左方华,刘峥,卢维海.固相萃取-气相色谱法测定农产品中灭蚁灵残留研究[J].安徽农业科学,2012(13):7733-7734. |
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| 作者姓名： | 何雨帆 韦莹军 左方华 刘峥 卢维海 |
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| 作者单位： | 广西壮族自治区植保总站,广西南宁,530022;广西壮族自治区植保总站,广西南宁,530022;广西壮族自治区植保总站,广西南宁,530022;广西壮族自治区植保总站,广西南宁,530022;广西壮族自治区植保总站,广西南宁,530022 |
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| 摘 要： | 目的]建立一种农产品中灭蚁灵农药残留快速定量分析方法——固相萃取-气相色谱法。方法]样品经乙腈提取后,用弗罗里硅土固相萃取柱消除干扰物质,外标法定量,经气相色谱-电子捕获器(ECD)进行测定。结果]在0.01～1.00 mg/kg浓度范围内,该分析方法的线性相关方程为y=4 207 970x+86 930r,=0.999 4。方法的添加回收率在77.2%～104.8%,相对标准偏差(n=3)小于5%,检出限为0.002 mg/kg,定量限为0.006 mg/kg。结论]该方法可快速、灵敏、简便地检测出农产品中的灭蚁灵残留。
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| 关 键 词： | 固相萃取-气相色谱 灭蚁灵 农产品 |
Determination of Mirex Residue in Agricultural Products by Solid Phase Extraction-gas Chromatography |
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| Institution: | HE Yu-fan et al(General Station of Plant Protection in Guangxi Autonomous Region,Nanning,Guangxi 530022) |
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| Abstract: | Objective] The aim was to establish a solid phase extraction(SPE)-gas chromatography(GC) method for the analysis of mirex residue in agricultural products.Method] The pesticide residues were extracted with acetonitrile and cleaned up on Florisil solid-phase extraction column,and then determined by gas chromatography with electron capture detector(ECD).Result] The relation equation within 0.01-1.00 mg/kg was y=4 207 970x+86 930,and the linear correlation coefficient was 0.999 4.The recoveries of mirex ranged from 77.2% to 104.8%,and the relative standard deviation(n=3) was below 5%.The limit of detection(LOD) was 0.002 mg/kg,and the limit of quantity(LOQ) was 0.006 mg/kg.Conclusion] According to the method,the mirex residues in agricultural products can be detected quickly,conveniently and sensitively. |
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| Keywords: | Solid phase extraction-gas chromatography Mirex Agricultural products |
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