气相色谱法测定果蔬中5种拟除虫菊酯类农药残留

5(,118000)(,125000)5,,-ECD5,0.0010.005g/mL0.011g/mL,0.99984.8%10.5%(n=6),89.9%105.0%,,,,,,[1,2][3],[4-6](SPE)-ECD,11.1:6890N,Agilent;:JJ-2B,;:SK-1,;:RE-2000,;:100g/mL,;:10g/mL,1mL10mL,,;:,,;(3060):,Dikma;:,Sigma,6504h;Na2SO4:20g/L,20gNa2SO4,1000mL;Florisil-SPE:1.0g,Supelco1.2,5.0g50mL,10mL10mL,3min4500r/min5min,50mL,10mLNa2SO4,1min,1.35mL-(95+5)SPE,;2.0mL,5mL-(95+5)3,0.8mL/min,,,1.0mL,1.4:DB-1(30m0.32mm,0.25m);:250;-ECD:330;:6020/min260,10min;:;:200kPa;:1.0L;:50122.15:200920622555,:5DB-1,,5,50.1g/mL11;2;345;67;812.2,-(1+1)50.1g/mL5,,,15.0g30mL30mL250mL30min,,;,;,,,13,164.6%,,,;,;,5.0g50mL,10mL10mL30min,20.033.2;60min,46.8;90min61.2,2,,119.2%,486.9%,,,,,,,,5.0g50mL,10mL10mL,3min400024000r/min,,,,,,130.9%,,,,,,,,99.9%,,2.3,0.1g/mL5,,-(95+5)(90+10)(85+15)-(95+5)(90+10)(85+15)-,(95+5)(90+10)88.1%91.4%,;(85+15)131.4%,497.3%,11min,,,652009,18,5-(95+5)100.5%,5;-(90+10)87.1%,77.0%;-(85+15)82.2%,,-(95+5),SPE,-,SPE,,,,2.40.011.0g/mL5,,Yc,3,115/gmL-1/gmL-1Y=2833.0c+9.71.00000.0110.001Y=2325.5c-5.41.00000.0110.001Y=1834.6c-3.51.00000.0110.005Y=2535.7c-25.50.99990.0110.005Y=5937.3c-69.20.99980.0110.0021,50.011g/mL0.001g/mL,0.005g/mL,0.002g/mL,2.5536,,22(n=6)/gg-1/gg-1/%RSD/%0.020.10.50.01850.1020.51492.5102.0102.86.95.46.20.020.10.50.02020.08990.471101.089.994.27.34.87.20.020.10.50.02050.1050.506102.5105.0101.210.55.68.50.020.10.50.01990.1010.49499.5101.098.88.85.36.70.020.10.50.01970.1050.50198.5105.0100.29.78.710.42,589.9%105.0%,RSD10.5%,,,,,,,,,,3,,,,5[1],,,.[J].,2006,25(4):89-92.[2],,,.5[J].,2006,25(12):99-102.[3],,,.[J].,2007,17(5):779-780.75,:5[4],,,.-[J].,2008,27(4):25-28.[5],,,.-[J].,2004,23(4):25-27.[6].7[J].,2001,10(6):19-20.DETERMINATIONOF5PYRETHROIDPESTICIDERESIDUESINFRUITSANDVEGETABLESBYGASCHROMATOGRAPHYJiangRuidong(DandongCenterofQualityInspectionandTestingforAgriculturalEnvironmentandProducts,Dandong118000,China)JinGehui(HuludaoEntry-ExitInspectionQuarantineBureau,Huludao125000,China)ABSTRACTAmethodforrapidandaccuratedeterminationof5pyrethroidpesticidesresiduesinfruitandvegetablewasestab2lished.Thepesticideresidueswereextractedbyvortexshaking,purifiedbyaSPEcolumn,andthendeterminedbycapillarygaschro2matography-ECD.Thismethodcoulddetermine5pyrethroidpesticidesresiduesatthesametime.Thedetectionlimitswere0.001-0.005g/mL,andthelinerrangewere0.01-1g/mL.Thecorrelationcoefficientsweremorethan0.9998.Therelativestandarddeviationswere4.8%-10.5%(n=6).Therecoveriesofpesticideswere89.9%-105.0%.KEYWORDSvortexshaking,pyrethroid,pesticideresidues,gaschromatography,HoneywellAnalytics,OpenPathIRSearchlineExcel,,,,,HoneywellAnalyticsSearchpointOptimaPlus,100,,,,,FPSO,():5,5,,,(),42003,,4,,5;95%,;,,,,()2009812,40,90GurmilGendeh,,,,ProSwift(),,,,27t,4050t,240300t,760960t()852009,18,5