EPA Method 552 Determination of Haloacetic Acids in Drinking Water

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1、METHOD552DETERMINATIONOFHALOACETICACIDSINDRINKINGWATERBYLIQUID-LIQUIDEXTRACTION,DERIVATIZATION,ANDGASCHROMATOGRAPHYWITHELECTRONCAPTUREDETECTIONJuly1990JimmieW.HodgesonJ.Collins(TechnologyApplicationsInc.)R.E.Barth(TechnologyApplicationsInc.)ENVIRONMENTALMONITORINGSYSTEMSLABORATORYOF

2、FICEOFRESEARCHANDDEVELOPMENTU.S.ENVIRONMENTALPROTECTIONAGENCYCINCINNATI,OHIO45268552-1METHOD552DETERMINATIONOFHALOACETICACIDSINDRINKINGWATERBYLIQUID-LIQUIDEXTRACTION,DERIVATIZATION,ANDGASCHROMATOGRAPHYWITHELECTRONCAPTUREDETECTION1.0SCOPEANDAPPLICATION1-4,111.1Thisisagaschromatograph

3、ic(GC)methodapplicabletothedeterminationofthelistedhalogenatedaceticacidsindrinkingwater,groundwater,rawwaterandanyintermediatetreatmentstage.Inaddition,thechlorinatedphenolslistedmaybeanalyzedbythismethod.ChemicalAbstractServicesAnalyteRegistryNumberMonochloroaceticAcid79-11-8Dichl

4、oroaceticAcid79-43-6TrichloroaceticAcid76-03-9MonobromoaceticAcid79-08-3BromochloroaceticAcid5589-96-3DibromoaceticAcid631-64-12,4-Dichlorophenol120-83-22,4,6-Trichlorophenol88-06-21.2Thismethodisapplicabletothedeterminationoftheseanalytesoverthe1,2,4concentrationrangestypicallyfoun

5、dindrinkingwater,subjecttothemethoddetectionlimits(MDL)listedinTable2.Thedetectionlimitsobservedmayvaryaccordingtotheparticularmatrixanalyzedandthespecificinstrumentationemployed.Thehaloaceticacidsareobservedubiquitouslyinchlorinatedsuppliesatconcentrationsnormallywithinthespikingle

6、velrangesinTables2-5.1.3Tribromoaceticacidhasnotbeenincludedbecauseofproblemswithextractionandchromatographybythismethod.Themixedbromochloroaceticacidshaverecentlybeensynthesized.Thebromochloroaceticacidispresentinchlorinatedsuppliesandmethodvalidationdataareprovidedherein.However,n

7、eatmaterialforthiscompoundisnotreadilyavailable.Themixedtrihalogenatedacidsmayalsobepresent.Thesearenotincludedbecauseofcurrentproblemswithsamplepurityandthechromatographyforthesetwocompounds.1.4The2-chlorophenolhasnotbeenincludedasamethodanalyteintheabovelist,primarilybecauseitsrea

8、listicdetectionlimi