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【英文标准名称】:ElementalCompositionofZeolitesbyICP-AES
【原文标准名称】:用电感耦合等离子体发射光谱仪测定泡沸石的元素成分
【标准号】:ASTMUOP961-1998
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【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】:
【标准类型】:(UOP)
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThismethodisforthedeterminationofcomponentsinzeolitesbyInductivelyCoupledPlasma-AtomicEmissionSpectroscopy(ICP-AES).Althoughthedeterminationofsilicon(Si),aluminum(Al),sodium(Na),potassium(K),calcium(Ca),iron(Fe),titanium(Ti),magnesium(Mg),phosphorus(P)andlithium(Li)isspecificallyaddressed,manyotherelements,includingtracecontaminants,canalsobedetermined.However,barium(Ba)andlead(Pb)cannotbedeterminedinthedigestduetotheformationofinsolublesulfates.Bariumcanbedeterminedfromthefusionsolutionwithaquantitationlimitofapproximately0.01mass-%.Thismethodissuitableforsamplescontaininglessthan40mass-%alumina(Al2O3)andlessthan65mass-%silica(SiO2);however,itcanbereadilyexpandedtosampleswithothersilica/aluminaratiosutilizingthesameapproachasdescribedherein.Zirconium(Zr)atlevelsaboveaboutonemass-%caninterferewiththeanalysisforaluminumwhenusingsomeinstruments,unlessanalternativewavelengthisused.Precisionisabout1to2%relativestandarddeviationforelementspresentatconcentrationsgreaterthan0.1mass-%,andmassbalancesbetween98.5and101.5mass-%arereportedonavolatile-freebasis.Precisionbelow0.1mass-%doesnotexceed10%relativedowntothequantitationlimitslistedinTable2.
【中国标准分类号】:
【国际标准分类号】:
【页数】:11P.;A4
【正文语种】:英语