环境空气-挥发性有机物的测定--美国EPA--Method-TO-15r

EPA/625/R-96/010bCompendiumofMethodsfortheDeterminationofToxicOrganicCompoundsinAmbientAirSecondEditionCompendiumMethodTO-15DeterminationOfVolatileOrganicCompounds(VOCs)InAirCollectedInSpecially-PreparedCanistersAndAnalyzedByGasChromatography/MassSpectrometry(GC/MS)CenterforEnvironmentalResearchInformationOfficeofResearchandDevelopmentU.S.EnvironmentalProtectionAgencyCincinnati,OH45268January1999iiMethodTO-15AcknowledgementsThisMethodwaspreparedforpublicationintheCompendiumofMethodsfortheDeterminationofToxicOrganicCompoundsinAmbientAir,SecondEdition(EPA/625/R-96/010b),whichwaspreparedunderContractNo.68-C3-0315,WANo.3-10,byMidwestResearchInstitute(MRI),asasubcontractortoEasternResearchGroup,Inc.(ERG),andunderthesponsorshipoftheU.S.EnvironmentalProtectionAgency(EPA).JusticeA.Manning,JohnO.Burckle,andScottHedges,CenterforEnvironmentalResearchInformation(CERI),andFrankF.McElroy,NationalExposureResearchLaboratory(NERL),allintheEPAOfficeofResearchandDevelopment,wereresponsibleforoverseeingthepreparationofthismethod.AdditionalsupportwasprovidedbyothermembersoftheCompendiaWorkgroup,whichinclude:•JohnO.Burckle,EPA,ORD,Cincinnati,OH•JamesL.Cheney,CorpsofEngineers,Omaha,NB•MichaelDavis,U.S.EPA,Region7,KC,KS•JosephB.ElkinsJr.,U.S.EPA,OAQPS,RTP,NC•RobertG.Lewis,U.S.EPA,NERL,RTP,NC•JusticeA.Manning,U.S.EPA,ORD,Cincinnati,OH•WilliamA.McClenny,U.S.EPA,NERL,RTP,NC•FrankF.McElroy,U.S.EPA,NERL,RTP,NC•HeidiSchultz,ERG,Lexington,MA•WilliamT.JerryWinberry,Jr.,EnviroTechSolutions,Cary,NCThisMethodistheresultoftheeffortsofmanyindividuals.Gratitudegoestoeachpersoninvolvedinthepreparationandreviewofthismethodology.Author(s)•WilliamA.McClenny,U.S.EPA,NERL,RTP,NC•MichaelW.Holdren,Battelle,Columbus,OHPeerReviewers•KarenOliver,ManTech,RTP,NC•JimCheney,CorpsofEngineers,Omaha,NB•ElizabethAlmasi,VarianChromatographySystems,WalnutCreek,CA•NormKirshen,VarianChromatographySystems,WalnutCreek,CA•RichardJesser,Graseby,Smyrna,GA•BillTaylor,Graseby,Smyrna,GA•LaurenDrees,U.S.EPA,NRMRL,Cincinnati,OHFinally,recognitionisgiventoFrancesBeyer,LynnKaufman,DebbieBond,CathyWhitaker,andKathyJohnsonofMidwestResearchInstitute'sAdministrativeServicesstaffwhosededicationandpersistenceduringthedevelopmentofthismanuscripthasenabledit'sproduction.DISCLAIMERThisCompendiumhasbeensubjectedtotheAgency'speerandadministrativereview,andithasbeenapprovedforpublicationasanEPAdocument.Mentionoftradenamesorcommercialproductsdoesnotconstituteendorsementorrecommendationforuse.METHODTO-15DeterminationofVolatileOrganicCompounds(VOCs)InAirCollectedInSpecially-PreparedCanistersAndAnalyzedByGasChromatography/MassSpectrometry(GC/MS)TABLEOFCONTENTSPage1.Scope......................................................................15-12.SummaryofMethod15-23.Significance.................................................................15-34.ApplicableDocuments........................................................15-44.1ASTMStandards........................................................15-44.2EPADocuments.........................................................15-45.Definitions..................................................................15-46.InterferencesandContamination.................................................15-67.ApparatusandReagents.......................................................15-67.1SamplingApparatus.....................................................15-67.2AnalyticalApparatus.....................................................15-87.3CalibrationSystemandManifoldApparatus..................................15-107.4Reagents...............................................................15-108.CollectionofSamplesinCanisters...............................................15-108.1Introduction............................................................15-108.2SamplingSystemDescription..............................................15-118.3SamplingProcedure......................................................15-128.4CleaningandCertificationProgram.........................................15-149.GC/MSAnalysisofVolatilesfromCanisters.......................................15-169.1Introduction............................................................15-169.2PreparationofStandards..................................................15-1710.GC/MSOperatingConditions...................................................15-2110.1Preconcentrator.........................................................15-2110.2GC/MSSystem.........................................................15-2210.3AnalyticalSequence......................................................15-2210.4InstrumentPerformanceCheck.............................................15-2310.5InitialCalibration........................................................15-2310.6DailyCalibration........................................................15-2710.7BlankAnalyses.........................................................15-2710.8SampleAnalysis........................................................15-28TABLEOFCONTENTS(continued)Pa