摘 要: | Introduction:Aftergainingexperienceintheisotopicratiomeasurementofsamarium(1),weproceededtocarryoutaprecisedeterminationofitsatomicweightandobtainedavalueofA,(Sm)agreeingperfectlywiththatobservedbyLugmair<'>andWasserburg<'>.Sampleofsamarium:Asampleofsamarium,99+%Sm,O,,wassuppliedbytheResearchInstituteofRareEarths,NanchangUniversity,Jiangsi.Itwasextractedfromthemineral,rareearthadsorptionkaolinite,anextensivedepositintheprovince-Thematerialwasfurtherpurifiedbyextractionchromatographythrou…
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