城区湖泊表层沉积物中邻苯二甲酸酯的组成与分布特征刘敏

27820078　　　　　　ActaScientiaeCircumstantiaeVol.27,No.8Aug.,2007:(No.40572176);(No.5003253)SupportedbytheNationalNaturalScienceFoundationofChina(No.40572176)andNaturalScienceFoundationofGuangdongProvince(No.5003253):(1980—),,;＊(),E-mail:[e-mail]:LIUMin(1980—),female;＊Correspondingauthor,E-mail:[e-mail],,,.2007.[J].,27(8):1377-1383LiuM,LinYJ,ZengF,etal.2007.ThedistributionandcompositionofphthalateestersinthesedimentofurbanlakesinGuangzhou[J].ActaScientiaeCircumstantiae,27(8):1377-1383刘敏1,2,林玉君1,曾锋1,＊,崔昆燕3,罗新2,曾尊祥11.中山大学化学与化学工程学院,广州5102752.东华理工学院应用化学系,抚州3440003.中山大学测试中心,广州510275:2006-08-23　　　:2007-02-24　　　:2007-04-30:20057、、、15,(QA)/(QC),16(PhthalateEsters,PAEs)、,.∑16PAEs2.267～74.935μg·g-1(),20.651μg·g-1.TOC1.126%～6.871%().DMP、DEP、DiBP、DnBP、DEEPDEHP,DiBP、DEHPDnBPPAEs.、、PAEs.、、PAEs,PAEs.:;;;PAEs:0253-2468(2007)08-1377-07　　　:X53　　　:AThedistributionandcompositionofphthalateestersinthesedimentofurbanlakesinGuangzhouLIUMin1,2,LINYujun1,ZENGFeng1,＊,CUIkunyan3,LUOXin2,ZENGZunxiang11.SchoolofChemistryandChemicalEngineering,SunYat-senUniversity,Guangzhou5102752.DepartmentofAppliedChemistry,EastChinaInstituteoftechnology,Fuzhou3440003.InstrumentalAnalysisandResearchCenter,SunYat-senUniversity,Guangzhou510275Received23August2006;　　　receivedinrevisedform24February2007;　　　accepted30April2007Abstract:Thecompositionanddistributioncharacteristicsof16phthalateesters(PAEs)in15surfacesedimentscollectedfromurbanlakesinBaiyun,Tianhe,Yuexiu,LiwanandHaizhuDistrictsofGuangzhou,ChinainJuly2005,wereinvestigatedusingGC-FIDandGC-MSunderqualityassurance(QA)andqualitycontrol(QC)methodsbasedontheU.S.EPA8061series.TheconcentrationsoftotalPAEsinthesurfacesedimentsrangedfrom2.267to74.935μg·g-1dryweight(dw),withanaverageconcentrationof20.651μg·g-1(dw).Totalorganiccarbon(TOC)rangedfrom1.126～6.871%.ThehighestsedimentconcentrationoftotalPAEswasfoundinsiteUL1,theurbanlakeconnectedtotheGuangzhouChannelofthePearlRiver,andtheurbanlakesinindustrial,commercialandresidentialareaswereallheavilycontaminated.ThemajorsourcesofPAEsinurbanlakesweredomesticsewageandindustrialwastewater;runofffromroads,roofsandothersurfaces;aswellasatmosphericdeposition.ThedistributionpatternofPAEsinthestudyareawascontrolledbythegeographicalconditionsandtheusagehistoryofPAEsintheenvironmentssurroundingtheurbanlake.DMP,DEP,DnBP,DiBP,DEEPandDEHPwerefoundinallthesurfacesediments.DiBP,DEHPandDnBPwerethepredominantPAEs.TheoveralllevelofPAEsinthestudyareaismoderatecomparedtootherareasincludingrivers,lakes,estuariesandthecoast.Keywords:Guangzhoucity;urbanlake;sediment;phthalateesterDOI:10.13671/j.hjkxxb.2007.08.007　　　　　　　　　　271　(Introduction)(PhthalateEstersPAEs,),、、、,10%～60%(Charlesetal.,1997;Gómez-Hensetal.,2003).,1.5×109t,5%(Simoneitetal.,2005).20011.70×107t,20024.00×106t,198020,2.00×106t(,2002).PAEs,,、PAEs.,PAEs、,()(Frommeetal.,2002;Rudeletal.,2003;Katoetal.,2003;Clausenetal.,2004;Zhuetal.,2004;Sablayrollesetal.,2005;Latini2005;Serôdioetal.,2006;Peijnenburgetal.,2006;,1993;,2001;,2005).PAEs、,(Mooreetal.,2000;Wezeletal.,2000;Waringetal.,2005).,,,.,7000t,1/3～1/2,3%～8%(,2000);,、、,PAEs、(Baueretal.,1998;Guidottietal.,2000;Filhoetal.,2003;Teiletal.,2006;,2004;,2005).,,150d,1600～1900mm.、,PAEs、.PAEs,PAEs,PAEs.2005714～20、、、15,USEPA8061,(QA)/(QC),16PAEs,PAEs.2　(Materialsandmethods)2.1　样品采集1.1　Fig.1　MapofsamplingsitesUL1UL2;UL4;UL3、UL5、UL6、UL7、UL8UL9、,、;UL10;UL11UL12UL13UL14UL15、.2005714～20,27～35℃.;,4(0～5cm)(100m×100m)、,,-20℃.2.2　试剂与仪器:(DimethylPhthalate,DMP)、(DiethylPhthalate,DEP)DEP、(Di-i-butylPhthalate,DiBP)、(Di-n-butylPhthalate,DnBP)、(DimethylglycolPhthalate,DMGP)、(4-—2-)(Di(4-methyl—2-pentyl)Phthalate,DMPP)、(2-)(Di(2-ethoxyethyl)Phthalate,DEEP)、(Diamyl13788:Phthalate,DAP)、(DihexylPhthalate,DHP)、(ButylbenzylPhthalate,BBP)、—2-(hexyl-2-ethylhexylPhthalate,HEHP)、(2-)(Di(2-n-butoxyethyl)Phthalate,DBEP)、(DicyclohexylPhthalate,DCHP)、(2-)(Di(2-ethylhexyl)Phthalate,DEHP)、(DinonylPhthalate,DNP)、(Di-n-octylPhthalate,DnOP)16PAEsPAEs((DiiphenylPhthalate)、(DibenylPhthalate)、(DiphenylPhthalate)Dr.EhrenstorferGmbH.()SIGMA.、、、,,.420℃12h,.(80～100)、(100～200)、48h,、(180±2)℃(250±2)℃12h,,3.0%±0.1%().,,10h,、,300℃10h.、.:GC4890D-FID,GC6890-5973MSD-(Agilent).CHNS(Elementar).(Freezone6,LabconceCo.).2.3　样品处理20g、,,、PAEs,200mL48h,.58～60℃,5～6·h-1.,1.0mL2×10mL,1～2mL./(2∶1),20mL70mL/(3∶7),40mL/(2∶8)PAEs;1.0mL,5mL,100μL..,1.0μL,GC-FIDGC-MSD(,2005).2.4　PAEs的GC-FID和GC-MSD分析DB-5MS(30m×0.25×0.25μm);280℃;:80℃1min,1℃·min-1280℃,10min;,,1.0μL.PAEs5,N2000.PAEsGC-MSD,HP.2.5　质量保证和质量控制(QA/QC)、、、、USEPAQA/QC,.PAEs75.5%～121.7%,PAEs76.9%～110.1%.0.11～0.55ng·g-1.2.6　总有机碳测定(TOC)(10%HCl)CHNS.2.7　数据处理方法∑16PAEsTOCPAEsPearson.2PAEsFig.2　PAEcongenerpatternsinsurfacesedimentsofurbanlakes3　(Results)、、、1516PAEs1379　　　　　　　　　　27TOC1,PAEs2.,PAEs、,DMP、DEP、DiBP、DnBP、DMPPDEHP,DiBP、DEHPDnBPPAEs.4　(Discussion)4.1　城区湖泊水体沉积物PAEs分布特征16PAEs2.267～74.935μg·g-1(),20.651μg·g-1.(UL1)PAEs74.935μg·g-1.、、、(UL13),PAEs51.572μg·g-1().(UL8,W∑16PAEs=37.093μg·g-1)、、、(UL12,W∑16PAEs=36.742μg·g-1)PAEs.,、(UL5)、(UL4),1999(,2004),PAEs19.139μg·g-