EPA METHOD 3650B Acid-Base Partition Cleanup

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1、METHOD3650BACID-BASEPARTITIONCLEANUP1.0SCOPEANDAPPLICATION1.1Method3650isaliquid-liquidpartitioningcleanupmethodtoseparateacidanalytes,e.g.,organicacidsandphenols,frombase/neutralanalytes,e.g.amines,aromatichydrocarbons,andhalogenatedorganiccompounds,usingpHadjust

2、ment.Itmaybeusedforcleanupofpetroleumwastepriortoanalysisorfurthercleanup(e.g.,aluminacleanup).Thefollowingcompoundscanbeseparatedbythismethod:_______________________________________________________________________________aCompoundNameCASNo.FractionBenz(a)anthrace

3、ne56-55-3Base-neutralBenzo(a)pyrene50-32-8Base-neutralBenzo(b)fluoranthene205-99-2Base-neutralChlordane57-74-9Base-neutralChlorinateddibenzodioxinsBase-neutral2-Chlorophenol95-57-8AcidChrysene218-01-9Base-neutralCreosote8001-58-9Base-neutralandAcidCresol(s)AcidDic

4、hlorobenzene(s)Base-neutralDichlorophenoxyaceticacid94-75-7Acid2,4-Dimethylphenol105-67-9AcidDinitrobenzene25154-54-5Base-neutral4,6-Dinitro-o-cresol534-52-1Acid2,4-Dinitrotoluene121-14-2Base-neutralHeptachlor76-44-8Base-neutralHexachlorobenzene118-74-1Base-neutra

5、lHexachlorobutadiene87-68-3Base-neutralHexachloroethane67-72-1Base-neutralHexachlorocyclopentadiene77-47-4Base-neutralNaphthalene91-20-3Base-neutralNitrobenzene98-95-3Base-neutral4-Nitrophenol100-02-7AcidPentachlorophenol87-86-5AcidPhenol108-95-2AcidPhorate298-02-

6、2Base-neutral2-Picoline109-06-8Base-neutralPyridine110-86-1Base-neutralTetrachlorobenzene(s)Base-neutralTetrachlorophenol(s)AcidToxaphene8001-35-2Base-neutralTrichlorophenol(s)Acid2,4,5-TP(Silvex)93-72-1Acid_________________________________________________________

7、______________________aChemicalAbstractServiceRegistryNumber.CD-ROM3650B-1Revision2December19961.2Method3650wasformerlyMethod3530inthesecondeditionofthismanual.1.3Thismethodisrestrictedtousebyorunderthesupervisionoftrainedanalysts.Eachanalystmustdemonstratetheabil

8、itytogenerateacceptableresultswiththismethod.2.0SUMMARYOFMETHOD2.1Thesolventextractfromapriorsolventextractionmethodisshakenwithwaterthatisstronglybasic