2023年全國碩士研究生考試考研英語一試題真題(含答案詳解+作文范文)_第1頁
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1、Designation:D5134?13StardTestMethodfDetailedAnalysisofPetroleumNaphthasthroughnNonanebyCapillaryGasChromatography1ThisstardisissuedunderthefixeddesignationD5134thenumberimmediatelyfollowingthedesignationindicatestheyearo

2、figinaladoptioninthecaseofrevisiontheyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperepsilon()indicatesaneditialchangesincethelastrevisionreapproval.INTRODUCTIONDespitethemanyadvancesincapil

3、larygaschromatographyinstrumentationtheremarkableresolutionachievableithasprovendifficulttostardizeatestmethodftheanalysisofamixtureascomplexaspetroleumnaphtha.Becauseoftheproliferationofnumeroussimilarcolumnstheendlessc

4、hoicesofphasethicknesscolumninternaldiameterlengthetc.aswellasinstrumentoperatingparametersmanylabatiesusesimilarbutnotidenticalmethodsfthecapillaryGCanalysisofpetroleumnaphthas.Evenminutedifferencesincolumnpolaritycolum

5、noventemperaturefexamplecanchangeresolutionelutionderofcomponentsmaketheiridentificationanindividualinterpretiveprocessratherthanthedesirableobjectiveapplicationofstardretentiondata.Toavoidthisstringentcolumnspecificatio

6、nstemperatureflowconditionshavebeenadoptedinthistestmethodtoensureconsistentelutionderresolutionreproducibleretentiontimes.Strictadherencetothespecifiedconditionsisessentialtothesuccessfulapplicationofthistestmethod.1.Sc

7、ope1.1Thisdetailedhydrocarbonanalysis(DHA)testmethodcoversthedeterminationofhydrocarboncomponentsparaffinsnaphthenesmonoaromatics(PNA)ofpetroleumnaphthasasenumeratedinTable1.Componentselutingafternnonane(bp150.8C)aredete

8、rminedasasinglegroup.1.2Thistestmethodisapplicabletoolefinfree(C7.1.5DetailedhydrocarboncomponentsinolefincontainingsamplesmaybedeterminedbyDHATestMethodsD6729D6730D6733.1.6ThevaluesstatedinSIunitsaretoberegardedasstard.

9、Nootherunitsofmeasurementareincludedinthisstard.1.7Thisstarddoesnotpurpttoaddressallofthesafetyconcernsifanyassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstardtoestablishappropriatesafetyhealthpracticesdetermi

10、netheapplicabilityofregulatylimitationspritouse.SpecificwarningstatementsaregiveninSection7.2.ReferencedDocuments2.1ASTMStards:2D1319TestMethodfHydrocarbonTypesinLiquidPetroleumProductsbyFluescentIndicatAdsptionD3700Prac

11、ticefObtainingLPGSamplesUsingaFloatingPistonCylinderD3710TestMethodfBoilingRangeDistributionofGasolineGasolineFractionsbyGasChromatographyD4057PracticefManualSamplingofPetroleumPetroleumProducts1Thistestmethodisunderthej

12、urisdictionofASTMCommitteeD02onPetroleumProductsLiquidFuelsLubricantsisthedirectresponsibilityofSubcommitteeD02.04.0LonGasChromatographyMethods.CurrenteditionapprovedDec.12013.PublishedJanuary2014.iginallyapprovedin1990.

13、Lastpreviouseditionapprovedin2008asD5134–98(2008)ε1.DOI:10.1520D513413.2FreferencedASTMstardsvisittheASTMwebsitewww.astm.gcontactASTMCustomerServiceat.FAnnualBookofASTMStardsvolumeinfmationrefertothestard’sDocumentSummar

14、ypageontheASTMwebsite.ASummaryofChangessectionappearsattheendofthisstardCopyright?ASTMInternational100BarrHarbDrivePOBoxC700WestConshohockenPA194282959.UnitedStates1D5443TestMethodfParaffinNaphtheneAromaticHydrocarbonTyp

15、eAnalysisinPetroleumDistillatesThrough200CbyMultiDimensionalGasChromatographyD6839TestMethodfHydrocarbonTypesOxygenatedCompoundsBenzeneinSparkIgnitionEngineFuelsbyGasChromatographyD6729TestMethodfDeterminationofIndividua

16、lComponentsinSparkIgnitionEngineFuelsby100MetreCapillaryHighResolutionGasChromatographyD6730TestMethodfDeterminationofIndividualComponentsinSparkIgnitionEngineFuelsby100–MetreCapillary(withPrecolumn)HighResolutionGasChro

17、matographyD6733TestMethodfDeterminationofIndividualComponentsinSparkIgnitionEngineFuelsby50MetreCapillaryHighResolutionGasChromatographyD7096TestMethodfDeterminationoftheBoilingRangeDistributionofGasolinebyWideBeCapillar

18、yGasChromatography3.SummaryofTestMethod3.1Arepresentativesampleofthenaphthaisintroducedintoagaschromatographequippedwithamethylsiliconebondedphasefusedsilicacapillarycolumn.Heliumcarriergastransptsthevapizedsamplethrough

19、thecolumninwhichthecomponentsareseparated.Componentsaresensedbyaflameionizationdetectastheyelutefromthecolumn.Thedetectsignalisprocessedbyanelectronicdataacquisitionsystemintegratingcomputer.Eachelutingpeakisidentifiedby

20、comparingitsretentionindextoatableofretentionindicesbyvisualmatchingwithastardchromatogram.Thetableofretentionindiceshasbeenestablishedbyrunningreferencecompoundsunderidenticalconditionsbygaschromatographic—massspectrome

21、tric(GCMS)analysisofreferencesamplesunderthesameconditionsboth.3.2Themassconcentrationofeachcomponentisdeterminedbyareanmalizationwithresponsefacts.PeakselutingafternnonanearesummedreptedasC10.TABLE1ContinuedCompoundRete

22、ntionTimeminAdjustedRetentionTimeminKovatsRetentionIndex@35CLinearRetentionIndex26Dimethylheptane9N44.9541.38...833.8113Trimethylcyclohexane45.2141.64...835.5UnidentifiedC9Naphthene45.5641.99...837.825Dimethylheptane9P45

23、.9242.35...840.335Dimethylheptane33DimethylheptaneN46.0942.52...841.4UnidentifiedC9Naphthene46.3142.74...842.9UnidentifiedC9Naphthene46.5542.98...844.5EthylBenzene47.1543.58...848.5UnidentifiedC9Naphthene47.3743.80...850

24、.0UnidentifiedNaphthene234Trimethylhexane47.5343.96...851.0UnidentifiedNaphthenes47.7844.21...852.7UnidentifiedNaphtheneParaffin48.1344.56...855.1mXylene48.4944.92...857.5pXylene48.6345.06...858.423Dimethylheptane48.9345

25、.36...860.434DimethylheptaneCN49.1045.53...861.634DimethylheptaneC49.2945.72...862.8UnidentifiedNaphthene49.4145.84...863.64EthylheptaneN49.6546.08...865.24Methyloctane50.1046.53...868.32Methyloctane50.2646.69...869.3Uni

26、dentifiedNaphthene50.4146.84...870.3UnidentifiedNaphthene50.7347.16...872.53EthylheptaneN50.9647.39...874.03Methyloctane51.1547.58...875.3UnidentifiedNaphthene51.3547.78...876.6oXylene112Trimethylcyclohexane51.5447.97...

27、877.9UnidentifiedNaphthene246Trimethylheptane51.7448.17...879.2UnidentifiedNaphthene52.1248.55...881.8UnidentifiedParaffin52.2448.67...882.6UnidentifiedNaphthenes52.5648.99...884.7UnidentifiedNaphthene52.8549.28...886.7U

28、nidentifiedNaphtheneParaffin53.0649.49...888.1UnidentifiedNaphthene53.2649.69...889.4UnidentifiedNaphthene53.4649.89...890.8UnidentifiedNaphthene54.0250.45...894.5UnidentifiedNaphthene54.4050.83...897.1nNonane54.8451.27.

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