用放射性活度计测定 ~(153)Sm 中杂质 ~(156)Eu、~(155)Eu 的含量

  • 摘要: 利用放射性活度计,采用衰变吸收分离法分析153Sm中微量放射性杂质156Eu、155Eu的含量,与多道γ能谱法比较,所有结果均在±7%内符合。该法的特点是所用设备简单、普及,方法简便,具有广泛的实用性

     

    Abstract: DETERMINATIONOFIMPURITIES156Euand155EuFROM153SmWITHRADIOACTIVITYMETERJiangJinling(NationalInstituteofTheControlofPharmaceuticalandBiologicalProducts,Beijing100050)ABSTRACTThemethodofradioactive-decayseparationandradioactive-rayabsorptionseparationisusedtodeterminethemicro-nuclearimpurities156Euand155Eufromthe153Smusingradioac-tivitymeter.Theseresultsareinagreementwithintherangeof±7%withtheresultsmea-suredbymultichannelanalyzerofthegammaspectrometry.Thismethodboastsofsimplee-quipmentandprocedure,andextensiveapplication.Keywordsradioactivitymeternuclearimpuritydecayseparationabsorptionsepa-ration153Sm156Eu155Eu

     

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