Pt and Pd in sediments from the Pearl River Estuary, South.pdf

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1、EnvironSciPollutResDOI10.1007/s11356-011-0653-7RESEARCHARTICLEPtandPdinsedimentsfromthePearlRiverEstuary,SouthChina:backgroundlevels,distribution,andsourceLi-fengZhong&WenYan&JieLi&Xiang-linTu&Bao-mingLiu&ZhenXiaReceived:25May2011/Accepted:24October2011#Springer-Verlag2011Abstract0.

2、19–1.18and0.15–1.76ng/g,respectively.BackgroundPurposeThisstudyassessedtheconcentrationsofplatinumvaluesofPtandPdwere0.20–1.17and0.10–1.34ng/g,(Pt)andpalladium(Pd)insurfacesedimentsandsedimen-respectively.ThespatialdistributionoftheenrichmenttarycorescollectedfromthePearlRiverEstuar

3、ywithafactordifferedbetweenPtandPdinsurfacesediments.viewofevaluatingthedistribution,backgroundlevels,Down-corevariationsinPt,Pd,andotherheavymetalpossiblesources,andcontaminationlevelofanthropogenicelementsweresimilarinallcasesandwererelatedtoPtandPd.sedimenttype.Materialsandmethod

4、sThirty-sixsamplesofsurfacesedi-ConclusionsSomeofthePtandPtinsurfacesampleswerementsand12samplesfromsedimentarycoreswerederivedfromanthropogenicemissions.PtandPdwerecollected.Al2O3wasanalyzedonfusedglassdisksbyX-deliveredtothesedimentbyfluvialinput.Inadditiontorayfluorescencespectro

5、meter.Heavymetalelementswerevehicleexhaustcatalysts,PtandPdwerederivedfrommeasuredbyinductivelycoupledplasma–massspectrome-othersources(e.g.,industrialprocess).Animportantpost-try.PtandPdwereseparatedfromthesamplematrixbyburialremobilizationprocessofPtandPdislikelytobeanionexchangec

6、hromatographyandsubsequentsolventparticlemixingbybillowscausedbytyphoon.extractionaftersampleshadbeendigestedinCariustubesusingaquaregia.TheanalysisofPtandPdwasperformedKeywordsPlatinum.Palladium.Background.byisotopicdilution-inductivelycoupledplasma-massDistribution.Vehicleexhaustc

7、atalyst.Sediment.Pearlspectrometry.RiverEstuaryResultsanddiscussionPtandPdconcentrationsinsurfacesedimentswere0.28–2.11and0.39–38.30ng/g,respective-ly,andPtandPdconcentrationsinsedimentarycoreswere1IntroductionThePearlRiveristhelargestriversysteminSouthChinaResponsibleeditor:Zhihong

8、XuandflowsintotheSo