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dc.contributor.author郑爱榕zh_CN
dc.contributor.author施文远zh_CN
dc.contributor.author黄奕普zh_CN
dc.date.accessioned2011-04-26T08:01:30Z
dc.date.available2011-04-26T08:01:30Z
dc.date.issued1990-05zh_CN
dc.identifier.citation原子能科学技术, Atomic Energy Science and Technology,1990 24(3):69-72zh_CN
dc.identifier.issn1000-6931zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/1319
dc.description.abstract<正> 一、引言~(231)Pa是AcU(~(235)U)天然放射系的一个重要成员。在海洋地球化学和地质年代学研究中,它是一个非常重要的核素。但可作为~(231)Pa分离用的产额示踪剂的核素只有~(233)Pa,它是β-γ发射体,半衰期短(27.0 d)。因此如果能够简便地制得示踪剂~(233)Pa,对~(231)Pa年代学的研究和应用以及对镤化学和放射化学的研究无疑是个促进。 【英文摘要】 A new method is presented for high purity ~(233)Pa separation from ~(237)Np usingTTA (2-thenoyltrifluoroacetone) as extractant. ~(233)Pa is extracted with an equalvolume of TTA in benzene from 8 mol/1 HNO_3 solution containing ~(237)Np, thenwashed the organic phase with 8 mol/1 HNO_3 three times. Subsequently, ~(233)Pa isreexacted into an equal volume of 1 mol/1 HNO_3-0.1 mol/1 HF from organicphase. The aqueous phase is washed by 0.5 mol/1 TTA in benzene. After all HFis removed by evaparation, and the resid...zh_CN
dc.language.isozhzh_CN
dc.publisher中国原子能科学研究院zh_CN
dc.subject~(233)Pazh_CN
dc.subject~(237)Npzh_CN
dc.subject分离;zh_CN
dc.subjectSeparationzh_CN
dc.title从~(237)Np中分离高纯度的~(233)Pa的新方法zh_CN
dc.title.alternativeTHE SEPARATION OF HIGH PURITY ~(233)Pa FROM ~(237)Npzh_CN
dc.typeArticlezh_CN


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