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《EPA Method 8082 Polychlorinated Biphenyls (PCBs) by Gas Chromatograph》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、METHOD8082POLYCHLORINATEDBIPHENYLS(PCBs)BYGASCHROMATOGRAPHY1.0SCOPEANDAPPLICATION1.1Method8082isusedtodeterminetheconcentrationsofpolychlorinatedbiphenyls(PCBs)asAroclorsorasindividualPCBcongenersinextractsfromsolidandaqueousmatrices.Open-tubular,capillarycolumnsar
2、eemployedwithelectroncapturedetectors(ECD)orelectrolyticconductivitydetectors(ELCD).Whencomparedtopackedcolumns,thesefused-silica,open-tubularcolumnsofferimprovedresolution,betterselectivity,increasedsensitivity,andfasteranalysis.Thetargetcompoundslistedbelowmaybed
3、eterminedbyeitherasingle-ordual-columnanalysissystem.ThePCBcongenerslistedbelowhavebeentestedbythismethod,andthemethodmaybeappropriateforadditionalcongeners.CompoundCASRegistryNo.IUPAC#Aroclor101612674-11-2-Aroclor122111104-28-2-Aroclor123211141-16-5-Aroclor1242534
4、69-21-9-Aroclor124812672-29-6-Aroclor125411097-69-1-Aroclor126011096-82-5-2-Chlorobiphenyl2051-60-712,3-Dichlorobiphenyl16605-91-752,2',5-Trichlorobiphenyl37680-65-2182,4',5-Trichlorobiphenyl16606-02-3312,2',3,5'-Tetrachlorobiphenyl41464-39-5442,2',5,5'-Tetrachloro
5、biphenyl35693-99-3522,3',4,4'-Tetrachlorobiphenyl32598-10-0662,2',3,4,5'-Pentachlorobiphenyl38380-02-8872,2',4,5,5'-Pentachlorobiphenyl37680-73-21012,3,3',4',6-Pentachlorobiphenyl38380-03-91102,2',3,4,4',5'-Hexachlorobiphenyl35065-28-21382,2',3,4,5,5'-Hexachlorobip
6、henyl52712-04-61412,2',3,5,5',6-Hexachlorobiphenyl52663-63-51512,2',4,4',5,5'-Hexachlorobiphenyl35065-27-11532,2',3,3',4,4',5-Heptachlorobiphenyl35065-30-61702,2',3,4,4',5,5'-Heptachlorobiphenyl35065-29-31802,2',3,4,4',5',6-Heptachlorobiphenyl52663-69-11832,2',3,4'
7、,5,5',6-Heptachlorobiphenyl52663-68-01872,2',3,3',4,4',5,5',6-Nonachlorobiphenyl40186-72-9206CD-ROM8082-1Revision0December19961.2Aroclorsaremulti-componentmixtures.WhensamplescontainmorethanoneAroclor,ahigherlevelofanalystexpertiseisrequiredtoattainacceptablelevels
8、ofqualitativeandquantitativeanalysis.ThesameistrueofAroclorsthathavebeensubjectedtoenvironmentaldegradation("weathering")ordegradationbytreatment
