【英文标准名称】:StandardGuideforRamanShiftStandardsforSpectrometerCalibration
【原文标准名称】:分光剂校准RAMAN转换标准的标准指南
【标准号】:ASTME1840-1996(2007)
【标准状态】:现行
【国别】:
【发布日期】:1996
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E13.08
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:Ramanspectroscopy;wavenumbercalibration
【摘要】:WavenumbercalibrationisanimportantpartofRamananalysis.ThecalibrationofaRamanspectrometerisperformedorcheckedfrequentlyinthecourseofnormaloperationandevenmoreoftenwhenworkingathighresolution.Todate,themostcommonsourceofwavenumbervaluesiseitheremissionlinesfromlow-pressuredischargelamps(forexample,mercury,argon,orneon)orfromthenon-lasingplasmalinesofthelaser.Thereareseveralgoodcompilationsofthesewell-establishedvalues(1-8).3Thedisadvantagesofusingemissionlinesarethatitcanbedifficulttoalignlampsproperlyinthesamplepositionandthelaserwavelengthmustbeknownaccurately.Withargon,krypton,andotherionlaserscommonlyusedforRamanthelatterisnotaproblembecauselasingwavelengthsarewellknown.Withtheadventofdiodelasersandotherwavelength-tunablelasers,itisnowoftenthecasethattheexactlaserwavelengthisnotknownandmaybedifficultortime-consumingtodetermine.Inthesesituationsitismoreconvenienttousesamplesofknownrelativewavenumbershiftforcalibration.Unfortunately,accuratewavenumbershiftshavebeenestablishedforonlyafewchemicals.ThisguideprovidestheRamanspectroscopistwithaverageshiftvaluesdeterminedinsevenlaboratoriesforsevenpurecompoundsandoneliquidmixture.1.1ThisguidecoversRamanshiftvaluesforcommonliquidandsolidchemicalsthatcanbeusedforwavenumbercalibrationofRamanspectrometers.TheguidedoesnotincludeproceduresforcalibratingRamaninstruments.Instead,thisguideprovidesreliableRamanshiftvaluesthatcanbeusedasacomplementtolow-pressurearclampemissionlineswhichhavebeenestablishedwithahighdegreeofaccuracyandprecision.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Someofthechemicalsspecifiedinthisguidemaybehazardous.Itistheresponsibilityoftheuserofthisguidetoconsultmaterialsafetydatasheetsandotherpertinentinformationtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortotheiruse.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H10
【国际标准分类号】:17_180_30
【页数】:11P.;A4
【正文语种】: