分子印迹固相萃取_高效毛细管电泳法检测鸡肉中的恩诺沙星残留_汪雪雁
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2020-03-07 16:34:32
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2010年11月Vol.28No.11November2010ChineseJournalofChromatography1107~1110技术与应用DOI:10.3724/SP.J.1123.2010.01107*通讯联系人:祁克宗,博士,教授,主要从事动物疫病病理研究.Tel:(0551)5786395,E-mail:qkz@ahau.edu.cn.基金项目:国家“十一五”科技支撑项目子项目(2006BAK02A08-4).收稿日期:2010-07-15分子印迹固相萃取-高效毛细管电泳法检测鸡肉中的恩诺沙星残留汪雪雁1,檀华蓉2,祁克宗3*,邵黎3,李慧3,薛秀恒1,谢英1(1.安徽农业大学茶与食品科技学院,安徽合肥230036;2.安徽农业大学生物技术中心,安徽合肥230036;3.安徽农业大学动物科技学院,安徽合肥230036)摘要:以恩诺沙星为模板分子,α-甲基丙烯酸为功能单体,二甲基丙烯酸乙二醇酯为交联剂,制备了恩诺沙星分子印迹聚合物。以该分子印迹聚合物为固相萃取材料,采用高效毛细管电泳分离方式,建立了分子印迹固相萃取-高效毛细管电泳检测鸡肉中恩诺沙星的方法。结果表明,该方法能有效地萃取和检测鸡肉中的恩诺沙星。在优化条件下,恩诺沙星的检出限为92.02μg/kg,定量限为336.04μg/kg;不同恩诺沙星添加水平下的回收率为77.84%~86.52%,相对标准偏差为2.18%~3.76%。该方法适用于鸡肉中恩诺沙星残留的测定。关键词:分子印迹聚合物;固相萃取;高效毛细管电泳;恩诺沙星;鸡肉中图分类号:O658文献标识码:A文章编号:1000-8713(2010)11-1107-04Determinationofenrofloxacinresidueinchickenmuscleusingmolecularimprintedsolidphaseextraction-highperformancecapillaryelectrophoresisWANGXueyan1,TANHuarong2,QIKezong3*,SHAOLi3,LIHui3,XUEXiuheng1,XIEYing1(1.CollegeofTea&FoodScienceandTechnology,AnhuiAgriculturalUniversity,Hefei230036,China;2.BiotechnologyCenter,AnhuiAgriculturalUniversity,Hefei230036,China;3.CollegeofAnimalScience,AnhuiAgriculturalUniversity,Hefei230036,China)Abstract:Molecularimprintedpolymertargetedforenrofloxacin(ENR)wassynthesizedusingENRasthetemplatemolecules,α-methacrylicacidasthefunctionalmonomerandethyleneglycoldimethacrylateasthecross-linkingagent.WiththeENRmolecularimprintedpolymer,amolecularimprintedsolidphaseextraction-highperformancecapillaryelectrophoresis(MISPE-HPCE)meth-odforthedeterminationofENRinchickenmusclewasdeveloped.TheresultsshowedthatthismethodexhibitedhighselectivityandsensitivityforthedeterminationofENRinchickenmuscle.Undertheoptimizedconditions,thelimitofdetectionandlimitofquantificationwere92.02μg/kgand336.04μg/kg,respectively.TherecoveriesoftheENRspikedinchickenmuscleatdifferentlevelswereintherangeof77.84%-86.52%,andtherelativestandarddeviations(RSDs)wereintherangeof2.18%-3.76%.ThisMISPE-HPCEmethodisfeasiblefortheanalysisofENRresidueinchickenmuscle.Keywords:molecularimprintedp
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