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1、METHOD502.2VOLATILEORGANICCOMPOUNDSINWATERBYPURGEANDTRAPCAPILLARYCOLUMNGASCHROMATOGRAPHYWITHPHOTOIONIZATIONANDELECTROLYTICCONDUCTIVITYDETECTORSINSERIESRevision2.1EditedbyJ.W.Munch(1995)R.W.Slater,Jr.andJ.S.Ho-Method502.2,Revision1.0(1986)J.S.Ho-Method502.2,Revision2.0(19
2、89)NATIONALEXPOSURERESEARCHLABORATORYOFFICEOFRESEARCHANDDEVELOPMENTU.S.ENVIRONMENTALPROTECTIONAGENCYCINCINNATI,OHIO45268METHOD502.2502.2-1VOLATILEORGANICCOMPOUNDSINWATERBYPURGEANDTRAPCAPILLARYCOLUMNGASCHROMATOGRAPHYWITHPHOTOIONIZATIONANDELECTROLYTICCONDUCTIVITYDETECTORSI
3、NSERIES1.0SCOPEANDAPPLICATION1.1Thisisageneralpurposemethodfortheidentificationandsimultaneousmeasurementofpurgeablevolatileorganiccompoundsinfinisheddrinkingwater,1-3rawsourcewater,ordrinkingwaterinanytreatmentstage.Themethodisapplicabletoawiderangeoforganiccompounds,in
4、cludingthefourtrihalomethanedisinfectionby-products,thathavesufficientlyhighvolatilityandlowwatersolubilitytobeefficientlyremovedfromwatersampleswithpurgeandtrapprocedures.Thefollowingcompoundscanbedeterminedbythismethod.ChemicalAbstractServicesAnalyteRegistryNumberBenze
5、ne71-43-2Bromobenzene108-86-1Bromochloromethane74-97-5Bromodichloromethane75-27-4Bromoform75-25-2Bromomethane74-83-9n-Butylbenzene104-51-8sec-Butylbenzene135-98-8tert-Butylbenzene98-06-6CarbonTetrachloride56-23-5Chlorobenzene108-90-7Chloroethane75-00-3Chloroform67-66-3Ch
6、loromethane74-87-32-Chlorotoluene95-49-84-Chlorotoluene106-43-4Dibromochloromethane124-48-11,2-Dibromo-3-Chloropropane96-12-81,2-Dibromoethane106-93-4Dibromomethane74-95-31,2-Dichlorobenzene95-50-11,3-Dichlorobenzene541-73-11,4-Dichlorobenzene106-46-7Dichlorodifluorometh
7、ane75-71-8502.2-2ChemicalAbstractServicesAnalyteRegistryNumber1,1-Dichloroethane75-34-31,2-Dichloroethane107-06-21,1-Dichloroethene75-35-4cis-1,2-Dichloroethene156-59-4trans-1,2-Dichloroethene156-60-51,2-Dichloropropane78-87-51,3-Dichloropropane142-28-92,2-Dichloropropan
8、e590-20-71,1-Dichloropropene563-58-6cis-1,3-Dichloropropene10061-01-5trans-1,3-Dichloropropene10061-02-
