| SPE-GC法同时检测草莓中7种常用农药的残留 |
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| 引用本文： | 杨振华,魏朝俊,贾临芳,梁丹,赵建庄.SPE-GC法同时检测草莓中7种常用农药的残留[J].农业环境保护,2012(11):2304-2308. |
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| 作者姓名： | 杨振华 魏朝俊 贾临芳 梁丹 赵建庄 |
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| 作者单位： | 北京农学院,北京102206 |
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| 基金项目： | 2011第七届北京市教学名师项目; 北京市属高等学校人才强教深化计划-学术创新人才（PHR201006124）;北京市属高等学校人才强教深化计划（PHR201108278）;北京市属高等学校人才强教深化计划（PHR200907136）; 农产品加工及贮藏工程北京市重点建设学科（PXM2009-014207-078172）; 首都农产品安全产业技术研究院成果转化项目（PXM2012-014207-000019）; 北京市教委科技面上项目（KM201210020014）; 北京市优秀人才培养项目（2010D005021000005） |
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| 摘 要： | 为检测草莓基质中的农药残留,建立了固相萃取-毛细管柱气相色谱方法,可同时检测草莓果实中百菌清、毒死蜱、粉唑醇、腈菌唑、高效氯氰菊酯、氰戊菊酯和嘧菌酯7种农药的残留量。样品经乙腈提取,C18固相萃取柱净化,GC-ECD进行定性及定量分析。百菌清、毒死蜱在0.05～1.0μg.mL-1,粉唑醇、腈菌唑、高效氯氰菊酯、氰戊菊酯和嘧菌酯在0.5～10.0μg.mL-1浓度范围内呈现良好线性关系。方法平均回收率为85.3%～102.7%,RSD小于5%,检出限范围为0.005～0.132mg.kg-1。该方法简单、快速、灵敏、准确,能满足国标中相关农药残留限量测定的要求。
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| 关 键 词： | 草莓 气相色谱法 农药残留 检测 |
Simultaneous Determination of the Residue of Seven Commonly-used Pesticides in Strawberry with Solid phase Extraction and Gas Chromatography |
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| YANG Zhen-hua,WEI Chao-jun,JIA Lin-fang,LIANG Dan,ZHAO Jian-zhuang.Simultaneous Determination of the Residue of Seven Commonly-used Pesticides in Strawberry with Solid phase Extraction and Gas Chromatography[J].Agro-Environmental Protection,2012(11):2304-2308. |
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| Authors: | YANG Zhen-hua WEI Chao-jun JIA Lin-fang LIANG Dan ZHAO Jian-zhuang |
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| Institution: | (Beijing University of Agriculture,Beijing 102206,China) |
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| Abstract: | A new method was developed to simultaneously detect the residue of 7 pesticides（chlorothalonil,chorpyriphos,flutriafol,myclobutanil,beta-cypermethrin,fenvalerate and azoxystrobin）in strawberry with solid-phase extraction and gas chromatography.The strawberry samples were extracted with acetonitrile,purified with C18 solid-phase extraction column,and detected by GC-ECD.The calibration curves were of good linearity when chlorothalonil and chorpyriphos were within a range from 0.05 μg.mL-1 to 1.0 μg.mL-1,and flutriafol,myclobutanil,beta-cypermethrin,fenvalerate and azoxystrobin were from 0.5 μg.mL-1 to 10.0 μg.mL-1.The average recovery rates ranged from 85.3% to 102.7%,its relative standard deviation（RSD）were lower than 5%,and the limit of detection（LOD）for all compounds changed from 0.005 mg.kg-1 to 0.132 mg.kg-1.This method is simple,rapid,delicate,accurate,and can meet the relevant requirements of determining pesticide residues in GB. |
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| Keywords: | strawberry gas chromatography pesticide residues detection |
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