EPA METHOD 8141B Organophosphorus Compounds by Gas Chromatography

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1、METHOD8141BORGANOPHOSPHORUSCOMPOUNDSBYGASCHROMATOGRAPHY1.0SCOPEANDAPPLICATION1.1Thismethodprovidesproceduresforthegaschromatographic(GC)determinationoforganophosphorus(OP)compounds.ThecompoundslistedinthetablebelowcanbedeterminedbyGCusingcapillarycolumnswithaflam

2、ephotometricdetector(FPD)oranitrogen-phosphorusdetector(NPD).TriazineherbicidescanalsobedeterminedwiththismethodwhentheNPDisused.Althoughperformancedataarepresentedforeachofthelistedchemicals,itisunlikelythatallofthemcouldbedeterminedinasingleanalysis.Thislimitat

3、ionresultsbecausethechemicalandchromatographicbehaviorofmanyofthesechemicalscanresultinco-elution.Theanalystmustselectcolumns,detectors,andcalibrationproceduresforthespecificanalytesofinterest.Anylistedchemicalisapotentialmethodinterferencewhenitisnotatargetanaly

4、te.AnalyteCASRegistryNo.OrganophosphorusPesticidesbAspon3244-90-4Azinphos-methyl86-50-0aAzinphos-ethyl2642-71-9Bolstar(Sulprofos)35400-43-2aCarbophenothion786-19-6aChlorfenvinphos470-90-6Chlorpyrifos2921-88-2aChlorpyrifosmethyl5598-13-0Coumaphos56-72-4aCrotoxypho

5、s7700-17-6cDemeton-O8065-48-3cDemeton-S8065-48-3Diazinon333-41-5aDichlorofenthion97-17-6Dichlorvos(DDVP)62-73-7aDicrotophos141-66-2Dimethoate60-51-5a,cDioxathion78-34-2Disulfoton298-04-4EPN2104-64-5aEthion563-12-2Ethoprop13194-48-4CD-ROM8141B-1Revision2January199

6、8AnalyteCASRegistryNo.aFamphur52-85-7aFenitrothion122-14-5Fensulfothion115-90-2Fenthion55-38-9aFonophos944-22-9a,dLeptophos21609-90-5Malathion121-75-5cMerphos150-50-5eMevinphos7786-34-7Monocrotophos6923-22-4Naled300-76-5Parathion,ethyl56-38-2Parathion,methyl298-0

7、0-0Phorate298-02-2aPhosmet732-11-6aPhosphamidon13171-21-6Ronnel299-84-3Stirophos(Tetrachlorvinphos)22248-79-9Sulfotepp3689-24-5dTetraethylpyrophosphate(TEPP)107-49-3aTerbufos13071-79-9a,bThionazin(Zinophos)297-97-2bTokuthion(Prothiofos)34643-46-4aTrichlorfon52-68

8、-6bTrichloronate327-98-0IndustrialChemicalsaHexamethylphosphoramide(HMPA)680-31-9a,dTri-o-cresylphosphate(TOCP)78-30-8TriazineHerbicides(NPDonly)aAtrazine1912-