固相萃取-气相色谱法测定油料和植物油中草除灵  

Determination of Benazolin-ethyl Residues in Oilseed and Oil by Solid Phase Extraction-Gas Chromatography

作　　者：韦丹青 胡永健 杨亚琴 刘进玺 王会锋 冯书惠 曹秀 钟红舰 WEI Dan-qing;HU Yong-jian;YANG Ya-qin;LIU Jin-xi;WANG Hui-feng;FENG Shu-hui;CAO Xiu;ZHONG Hong-jian(Institute of Agricultural Quality Standards and Testing Technology,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China)

机构地区：[1]河南省农业科学院农业质量标准与检测技术研究所,郑州450002

出　　处：《现代农药》2018年第2期45-47,53,共4页MODERN AGROCHEMICALS

基　　金：2017年河南省农业科学院自主创新专项基金(2017ZC62)

摘　　要：建立了固相萃取-气相色谱法测定油料和植物油中草除灵残留量。油料和植物油中草除灵残留分别经乙腈、正己烷饱和乙腈溶液提取,弗罗里硅土固相萃取柱净化,气相色谱-电子捕获检测器检测,外标法定量。结果表明,在0.001~0.10 mg/L范围内,草除灵的峰面积与质量浓度呈良好的线性关系,相关系数为0.999 4。草除灵在2种不同基质中的平均回收率为74.4%~110.9%,相对标准偏差为3.1%~6.8%,方法的定量限为0.05 mg/kg。本方法为油料和植物油中草除灵残留量的有效检测方法。A method was developed by solid phase extraction-gas chromatography for determination of benazolin-ethyl in oilseed and oil.The analytes were extracted with acetonitrile,acetonitrile/n-hexane saturated solution,cleaned up on Florisil SPE column,then analyzed by GC-ECD.The results demonstrated that the calibration curve was linear with the correlation coefficient of 0.999 4.The average recoveries of benazolin-ethyl in two matrixes were 74.4%-110.9%,and the relative standard deviations were 3.1%-6.8%.The limit of quantification(LOQ)of the method was 0.05 mg/kg.This method was suitable and effective for the determination of benazolin-ethyl residues in oilseed and oil.

关 键 词：草除灵 油料 植物油 固相萃取 气相色谱 

分 类 号：TQ450.263[化学工程—农药化工]