天然气的组成分析—组合法-中国分析仪器与检测技术培训中心

7:131-ponentsCaoChun-hui*1,2,LILi-wu1,LIZhong-ping1,DULi11.(KeyLaboratoryofPetroleumResourcesResearch,InstituteofGeologyandGeophysics,ChineseAcademyofSciences,Gansu730000,China)2.(GraduateUniversityofChineseAcademyofSciences,Beijing100049)Abstract:Gaschromatography(GC)ponentsofnaturalgas(H2,He,N2,Ar,CO2),howeverithaslowersensitivityandnarrowerlinearrange.MAT271canseparatenon-icfield.ItcansimultaneouslydetectH2SandSO2,andtheprocessonlytakestenminute.WetestedtheprecisionofMAT271.Itsrelativestandarddeviationislowerthan0.002.Wealsotestedstandardgas.Theresultisthattherelativestandarddeviationofnon-hydrocarbonandhydrocarbonbotharenomorethan0.1.positionanalysis,MAT271caninsteadofTCDtotestnon-hydrocarbons.Keywords:MAT271;Gasisotopemassspectrometer;positionanalysis;Thermalconductivitydetector(TCD);