官厅水库水中阿特拉津残留的分析及污染来源任晋

1,1,2(1.,　100085,E-mail:[e-mail];2.,　100038):--.10～50ml,40min,10ng/L.,0.67～3.9μg/L,,.:;;;--:X832　:A　:0250-3301(2002)01-03-0126:(29977023);(KT951-A1-507):(1973～),,.:2001-01-16;:2001-07-03＊TheConcentrationandSourceofAtrazineResidueinWaterofGuantingReservoirRenJin1,JiangKe1,ZhouHuaidong2(1.ResearchCenterforEco-EnvironmentalSciences,ChineseAcademyofSciences,Beijing100085,ChinaE-mail:[e-mail];2.WaterEnvironmentMonitoringAssessmentandResearchCenter,MinistryofWaterResources)Abstract:TheatrazineinwaterwasdeterminedbySPE-LC-MS.Itonlytook40mintoanalysisasample.Thedetectionlimitwas10ng/L.AtrazinewasdetectedinwaterofGuantingreservoir.TheconcentrationofatrazineinwatersamplesofGuantingreservoirwas0.67～3.9μg/L.Thesourceofatrazineinwaterwasdiscussed.AplantsituatedatupstreamofYangheRiverwasthoughtaprimarysourceofatrazineinGuantingreservoir.Keywords:atrazine;Guantingreservoir;endocrinedisruptingchemical;SPE-HPLC-MS　　,.,,..、.EPA3μg/L,0.1μg/L.1998Ⅰ、Ⅱ3μg/L.,.--(SPE-HPLC-MS),10ng/L,,(0.67～3.9μg/L).1　(1)　、();();()47mm,0.45μm().:(atrazine;MW:215.1),,20℃28mg/L,176℃,、、、.(2)　HP1050,Vy-dacC185μm250×4.6mmi.d.SPE(4mm×3mmI.DC18,phe-nomenex),Waters510(Waters),(UV)220nm;:7000(Rheodyne).VGPlatformⅡ[(AP-CI),(ESI)].(3)　2000(5)(11)、()、()4,2(1),23120021　　　　　　ENVIRONMENTALSCIENCEVol.23,No.1Jan.,2002DOI:10.13227/j.hjkx.2002.01.031,4℃,7d.1　Fig.1　DistributionofsamplingsitesofGuantingReservoir(4)　:,.:(2000-05).:0.45μm,47mm.SPE:3.0ml(/40/60)SPE,3.0ml/min;10～50ml5.0ml/minSPE,,,SPE.HPLC:/(1∶1),0.8ml/min.MS:(Scan):m/z:100～430,:1.05s;(SIR):[M+H]+m/z216;m/z218.2　2.1　320ml、SPESPE320ml(1.65μg/L)、、,1.1,SPE,.[3].1　-SPE、-SPETable1　ComparisonofextractingAtrazinemethodbyliquid-liquidextraction,on-lineSPEandoff-lineSPE/h/ml/%RSD/%1250090.57.8-SPE43092.57.0SPE0.21094.64.7　　,10ml,SPE,,40min.0.012μg/L,SIR0.008μg/L.(0.1μg/L).HPLC/APCI-SIR-MS(0.05～10ng),y=16230x+7560,r2=0.9996.SPE,UV,MS.,,.UV(2),(8.77min)(7.78min),.3SPE-LC-MS,[M+H]+m/z216,,,.2　LC-UVFig.2　TheLC-UVspectrumofwatersamplesofGuantingreservoir2.2　SPE-LC-MS,,2,4,4.4,,0.08～3.9μg/L,(5).,1271　　　　　　A:SPE-LC-MS(TIC)B:m/z216(SIR),8.9minUVMS,UV10s3　(0.67μg/L)SPE-LC-MSFig.3　TheSPE-LC-MSdeterminationofatrazineinBaqiansample4　Fig.4　TheconcentrationofatrazineofwatersamplesinGuantingreservoir(0.1μg/L).(12),,1988,1992,1995,(19871137μg/L,1994523μg/L),,,,,.,0.08μg/L,..　　,,1.5μg/L,0.6～0.75μg/L.:54.38m3,6.6kg,114.14m3,2.5kg.115～12,7～91m3,10～121m3,.,,(0.01μg/L).3　SPE/HPLC/MS,,,.,.:1　,..,2001,13(2):135～144.2　Scanchez-BruneteCetal.DeterminationofCornHerbicidesbyGC-MSandGC-NPDinenvironmentalSamples.J.Agri.FoodChem.,1994,42(8):2210～2214.3　,,..:,1999.134～138.4　DamiaBacelo,Marie-ClaireHennion.On-linesamplehan-dlingstrategiesforthetrace-leverdeterminationofpesticidesandtheirdegradationproductsinenvironmentalwaters.Ana-lyticaChimicaActa,1995,318:1～41.5　Marie-ClaireHennion.Solid-phaseextraction:methoddevel-opment,sorbents,andcouplingwithliquidchromatography.JournalofChromatographyA,1999,856:3～64.128　　　　　　23