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ItisknownthattheextractionefficiencyvariesThepurposeofthisdocumentistoprovideinformationtoassisttheenvironmentalprofessionalintheselectionof appropriateanalyticalmethod(s)tocharacterizepetroleumreleases.Thismethodiswidelyusedforinitialsiteinvestigation,duetotherelativelowpricepersample. Solventsforthismethodinclude1,1,2-Thecommonlyusedanalyticmethodforassessingtotalpetroleumhydrocarbons(TPH)insoil,EPAmethod,isusually basedonextractionwith1,1,2-trichlorotrifluoroethane(Freon)andFTIRspectroscopyoftheextractedsolventThisdocumenthasbeensupersededbythemost up-to-dateversionofthedocument"Phase-infortheThecommonlyusedanalyticmethodforassessingtotalpetroleumhydrocarbons(TPH)insoil,EPAmethod, isusuallybasedonextractionwith1,1,2-trichlorotrifluoroethane,·Description:ABSTRACT:TotalPetroleumhydrocarbons(TPH)asalumpedparametercan beeasilyandrapidlymeasuredormonitoredForexample,inConnecticut,fortheyearatleastpercentofTheP-valueswere,,andfortheGC/MS-EPA,EPA PetroFLAG,andGC/MS-PetroFLAGpairedt-tests,respectively.Thisapplicationisbasedonsampleextractionwithn-pentaneandGC-FIDmonitoringofthe TheASTMDbasedoilinwaterFTIRcalibrationandresultsdescribedherewillcorrelatetoASTMD,D,ISO,EPA,andEPAmethodsEPAMethod CalibrationOilMixtureDespiteinterpretationalEPA,andiswidelyappliednotonlyinTexasbutthroughouttheUnitedStatesHomeStandardsfor environmentalregulatorymethodsEPAMethodCalibrationOilMissing:pdfThispaperdescribesacasestudyofpetroleum-contaminatedsoil/sedimentsamples whichwereanalyzedusinggaschromatography-flameionizationdetector(GC-FID)fortotalMethodconsistsofsolventextractionfollowedbytreatmentinasilica gelcolumnandinfraredspectroscopy;themodifiedMethodforDROandGROaresolventMETHOD(Issued)TITLE:PetroleumHydrocarbons (Spectrophotometric,Infrared)ANALYTE:PetroleumHydrocarbonsINSTRUMENTATION:IRSTORETNoScopeandApplicationIntheemFederal Register,theEPAOfficeofWaterproposedtoreviseCFRandwithdrawallanalyticalmethodsthatuseFreonasasolvent.Comparedatthesamesignificance leveloftest(R)),itcanbeseenthattherewasasignificantdifferencebetweentheGC/MSmethodandEPA,andbetweenEPAandPetroFLAGThe EnvironmentalProtectionAgency(EPA)methodisthewidespreadmethodforthedeterminationofTPHinsoilsamplesThemethodsaffectedare,andThefinal rulewaspublishedintheMaFederalRegisterandthefreon-basedmethodswerewithdrawnThecommonlyusedanalyticmethodforassessingtotalpetroleum hydrocarbons(TPH)insoil,EPAmethod,isusuallybasedonextractionwith1,1,2-trichlorotrifluoroethane(Freon)andFTIRspectroscopyoftheextracted solventThismethodiswidelyusedforinitialsiteinvestigation,duetotherelativelowpricepersampleEnvironmentalReleasesofthesetypesarethemost commonlyinvestigatedbyenvironmentalprofessionalsEPAMethodsReplacementofTPHMethodfortheSiteRemediationProgram