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1、FoodChemistry125(2011)773–778ContentslistsavailableatScienceDirectFoodChemistryjournalhomepage:www.elsevier.com/locate/foodchemAnalyticalMethodsEvaluationofQuEChERSmethodforthedeterminationoforganochlorinepesticideresiduesinselectedgroupsoffruitsEwaCies´lik,AnnaSadowska-Ro
2、ciek⇑,JuanManuelMolinaRuiz,MagdalenaSurma-ZadoraMalopolskaCentreofFoodMonitoringandCertification,UniversityofAgricultureinKrakow,ul.Balicka122,30-149Krakow,PolandarticleinfoabstractArticlehistory:Thispaperreportsamethodfororganochlorinepesticidedeterminationinselectedfruits
3、pecieswhereReceived12May2009pesticideresidueswereextractedandcleanedusingabufferedQuEChERS(Quick,Easy,Cheap,Effective,Receivedinrevisedform20July2010RuggedandSafe)method,followedbyGC–MSanalysis.Themethodresultsshowedthematrix-matchedAccepted2September2010calibrationcurveli
4、nearitywas>0.99foralltargetanalytes.Withpesticiderecoveryrates(spikedat10.008mgkg)rangingfrom70%to120%,andRSDvalues<17%formostcompounds,thelimitofquan-1tificationrangedfrom0.001–0.013mgkg.Finally,themethodruggednesswasfurtherdemonstratedKeywords:byanalysisofactualcommerci
5、alfruitsandbabyfoodsamples.PesticidesÓ2010ElsevierLtd.Allrightsreserved.FoodGC–MSQuEChERSFruits1.Introductiontionmethods,andSolid-PhaseExtraction(SPE)orGelPermeationChromatography(GPC)cleanup,followedbygaschromatographyThesteadygrowthoftheworld’spopulationnecessitatesin-an
6、alysisusingavarietyofdetectors(García-Reyes,Ferrer,Gómez-creasedfoodproduction,whichinitsturnplacestheonusuponRamos,Molina-Díaz,&Fernández-Alba,2007;GarridoFrenich,Pla-theinternationalchemicalindustrytofindnewcompoundstopro-zaBolaños,&MartínezVidal,2008;Guardia-Rubio,Marcha
7、l-López,tectcropsagainstpestsandotherbiologicalthreats.TheincreasesAyora-Canˇada,&Ruiz-Medina2007;Štajnbaher&Zupancˇicˇ-Kralj,incropyieldsfrompesticideuseareconsiderable,resultingintheir2003).Alltheseproceduresarecomplex,consumetoxicsolvents,environmentalaccumulationandthe
8、irconsequententrancetotheandtakealongtime,incurringconsequentcoststothecustomer.humanfood