【英文标准名称】:StandardTestMethodforDeterminationofTraceElementsinGlassSamplesUsingInductivelyCoupledPlasmaMassSpectrometry(ICP-MS)
【原文标准名称】:用感应耦合等离子体质谱法(ICP-MS)测定玻璃样品中痕量元素的标准试验方法
【标准号】:ASTME2330-2004
【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】:E30.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:forensicscience;glasscomparisons;glassmeasurement;traceelementalanalysis
【摘要】:Thistechniqueisdestructive,inthattheglassfragmentsmayneedtobecrushed,andmustbedigestedinacid.AlthoughtheconcentrationrangesofthecalibrationcurvesshowninAppendixX1areapplicabletosodalimeandborosilicateglass,thismethodisusefulfortheaccuratemeasurementoftraceelementsfromawidevarietyofglasssamples.Thedeterminationtheelementalconcentrationsinglassallowsforadditionaldatathatcanbecomparedbetweenfragments.Astandardized,validatedmethodcanaidintheinterchangeofdatabetweenlaboratories.Itshouldberecognizedthatthemethodmeasuresthebulkconcentrationofthetargetelements.Anyextraneousmaterialpresentontheglassthatisnotremovedbeforedigestionmayresultinameasurablydifferentconcentrationoftheelements.Theprecisionandaccuracyofthemethodshouldbeestablishedineachlaboratorythatemploysthemethod.Confidenceintervalsorasimilarstatisticalqualitystatementshouldbequotedalongwithanyreportedconcentrationvalue.1.1Thistestmethodcoversaprocedureforelementalanalysisofmagnesium(Mg),aluminum(Al,titanium(Ti),manganese(Mn),gallium(Ga),rubidium(Rb),strontium(Sr),zirconium(Zr),antimony(Sb),barium(Ba),lanthanum(La),cerium(Ce),samarium(Sm),hafnium(Hf)andlead(Pb)inthebulkofglasssamples(irregularlyshapedandassmallas200micrograms)forthecomparisonoffragmentsofaknownsourcetotherecoveredfragmentsfromaquestionedsource.Theseelementsarepresentinsodalimeandborosilicateglassinngg-1to%levels.Alternativemethodsforthedeterminationofelementalanalysisofglassarelistedinthereferences.Thisproceduremayalsobeapplicabletootherelements,othertypesofglass,orotherconcentrationrangeswithappropriatemodificationsofthedigestionprocedure(ifneededforfullrecoveryoftheadditionalelements)andthemassspectrometerconditions.Theadditionofcalciumandpotassium,forexample,couldbeaddedtothelistofanalytesinamodifiedanalysisscheme.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q33
【国际标准分类号】:71_040_40;81_040_10
【页数】:6P.;A4
【正文语种】: