【英文标准名称】:StandardPracticeforAlternateActinideCalibrationforInductivelyCoupledPlasma-MassSpectrometry
【原文标准名称】:感应耦合等离子体质谱法的交替锕系校正的标准规程
【标准号】:ASTMC1590-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:C26.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:锕系;感应;等离子体;校正;质谱学;耦合
【英文主题词】:actinides;inductivelycoupledplasma-massspectrometry(ICP-MS);massbias;thorium;uranium
【摘要】:Oneofthebenefitsofthisstandardpracticeistheabilitytocalibratefortheanalysisofhighlyradioactiveactinidesusingcalibrationstandardsatmuchlowerspecificactivities(thatis,232Thand238U).Environmentallaboratoriesmayfindthisstandardpracticeusefuliffacilitiesarenotavailabletohandlethehighlyradioactivestandardsoftheindividualactinidesofinterest.Thedegreeofactualmassbiasisvariableandisdependentuponinstrumenttuneparameters.Thisstandardpracticeusesuniversalinterferenceequationstoderiveamassbiascorrectionthatisspecifictotheinstrumentparametersandtuneusedforsampledataacquisitionandnotbasedonahistoricalaverage.Massbiascorrectionusestheinstrumentsoftwareinterferenceequationsanddoesnotrequireadditionalsubsequentoff-linecalculations.Themethodologythatthisstandardpracticeisbasedonhasbeenusedforthedeterminationof232Thand237Npinenricheduraniumsolutionsandthedeterminationof241Aminplutoniumanduraniumlegacyoxidesfollowingdissolutionandionextractionchromatographyseparation.1.1ThisstandardpracticeprovidesguidanceforanalternatelinearcalibrationforthedeterminationofselectedactinideisotopesinappropriatelypreparedaqueoussolutionsbyInductivelyCoupledPlasma-MassSpectrometry(ICP-MS).Thisalternatecalibrationismassbiasadjustedusingthorium-232(232Th)anduranium-238(238U)standards.Oneofthebenefitsofthisstandardpracticeistheabilitytocalibratefortheanalysisofhighlyradioactiveactinidesusingcalibrationstandardsatmuchlowerspecificactivities.Environmentallaboratoriesmayfindthisstandardpracticeusefuliffacilitiesarenotavailabletohandlethehighlyradioactivestandardsoftheindividualactinidesofinterest.1.2Theinstrumentresponseforaseriesofdeterminationsofknownconcentrationof232Thand238Udefinesthemassversusresponserelationship.Foreachstandardconcentration,theslopeofthelinedefinedby232Thand238Uisusedtoderivelinearcalibrationcurvesforeachmassofinterestusinginterferenceequations.Themassbiascorrectedcalibrationcurves,althoughgeneratedfrominterferenceequations,arespecifictotheinstrumentoperatingparametersandtuningineffectatthetimeofdataacquisition.BecauseinterferenceequationsarepartofthenormalICP-MSmanufacturer'ssoftwarepackage,thiscalibrationmethodologyiswidelyapplicable.1.3Forthisstandardpractice,theactinideatomicmassrangethathasbeenstudiedisfromamu232-244.Guidanceforanextendedrangeofamu228-248isgiveninthispractice.1.4Usingthispractice,analyteconcentrationsarereportedateachamuandnotbyelementtotal(thatis,239Puversusplutonium).1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A43
【国际标准分类号】:71_040_50
【页数】:6P.;A4
【正文语种】:

标准名称：	野外大面积直剪试验规程
替代情况：	被YS 5221-2000代替
发布日期：
实施日期：	2003-04-01
首发日期：
作废日期：	2001-07-01
出版日期：

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