| 97Tc制备方法 |
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| 引用本文： | 王丽雄,杨通在,汤磊,熊宗华,杨君,姜涛. 97Tc制备方法[J]. 核化学与放射化学, 2007, 29(1): 60-64 |
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| 作者姓名： | 王丽雄 杨通在 汤磊 熊宗华 杨君 姜涛 |
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| 作者单位： | 中国工程物理研究院 核物理与化学研究所，四川 绵阳 621900 |
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| 摘 要： | 为了采用同位素稀释质谱分析法准确测定环境中的痕量99Tc，需要以97Tc作稀释剂。采用天然Ru为辐照原料，建立了碱熔→水浸取→沉淀→萃取→阴离子交换的化学分离流程，确定了97Tc的制备工艺。该流程的化学产额大于70％，对Ru的去污因子大于10７。
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| 关 键 词： | 裂变核素 Tc 分离 Ru |
| 文章编号： | 0253-9950(2007)01-0060-05 |
| 修稿时间： | 2006-06-28 |
Preparation of 97Tc |
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| WANG Li-xiong,YANG Tong-zai,TANG Lei,XIONG Zong-hua,YANG Jun,JIANG Tao. Preparation of 97Tc[J]. Journal of Nuclear and Radiochemistry, 2007, 29(1): 60-64 |
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| Authors: | WANG Li-xiong YANG Tong-zai TANG Lei XIONG Zong-hua YANG Jun JIANG Tao |
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| Affiliation: | Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Mianyang 621900, China |
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| Abstract: | The most sensitive analytical technique of 99Tc is isotope dilution mass spectrometry with 97Tc as yield tracer.97Tc was obtained by the irradiation of 2 g natural ruthenium metal.97Tc is isolated from the sample by combined ion-exchange chromatography,precipitation and ion-association solvent extraction technique.99Tcm and 103Ru are used as tracers in this method.The chemical recovery of Tc is more than 70% and the decontamination factor is more than 107. |
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| Keywords: | fission nuclide technetium separation ruthenium |
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