| UTEVA萃取色层分离超铀元素的性能研究 |
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| 引用本文： | 伊小伟,李冬梅,党海军,李梅,张海涛.UTEVA萃取色层分离超铀元素的性能研究[J].核化学与放射化学,2010,32(1):22-26. |
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| 作者姓名： | 伊小伟 李冬梅 党海军 李梅 张海涛 |
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| 作者单位： | 西北核技术研究所，陕西 西安710024 |
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| 摘 要： | 为建立快速、可靠的环境样品中超铀元素的分析方法,对UTEVA萃取色层树脂分离超铀元素的性能进行了研究。通过改变氧化还原条件、淋洗剂种类和浓度来探索UTEVA萃取色层树脂分离Am、Pu、Np和U的实验条件及分离效果,确定了以3 mol/L HNO3、1 mol/L HNO3-0.1 mol/L抗坏血酸、2 mol/L HCl-0.1 mol/L草酸、0.01 mol/L HNO3分别作为UTEVA树脂上Am、Pu、Np和U的淋洗剂,获得Am、Pu、Np和U的回收率分别为(93±1)%(、68±2)%(、44±3)%和(70±5)%(n=6),各核素间的去污因子为1×102~5×105。结果表明,用单个UTEVA萃取色层柱能够将Am、Pu、Np和U分离,并将此方法成功用于环境样品中Am、Pu、Np和U的分离。
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| 关 键 词： | 萃取色层分离 UTEVA 超铀元素 |
Separation of Transuranium Elements With UTEVA Extraction Chromatography |
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| YI Xiao-wei,LI Dong-mei,DANG Hai-jun,LI Mei,ZHANG Hai-taoNorthwest Institute of Nuclear Technology,Xi'an ,China.Separation of Transuranium Elements With UTEVA Extraction Chromatography[J].Journal of Nuclear and Radiochemistry,2010,32(1):22-26. |
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| Authors: | YI Xiao-wei LI Dong-mei DANG Hai-jun LI Mei ZHANG Hai-taoNorthwest Institute of Nuclear Technology Xi'an China |
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| Affiliation: | Northwest Institute of Nuclear Technology, Xi’an 710024, China |
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| Abstract: | In order to develop a fast and reliable procedure for analysis of transuranium elements in environmental samples,the performance of UTEVA extraction chromatography in separation of transuranium elements is studied.The separation experiment parameters are optimized in terms of the conditions for Pu and Np oxidation state adjustment and control,and the eluent composition and concentration for each of these four elements.The separation efficacy is evaluated.It is found that Am,Pu,Np,and U are effectively elute... |
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| Keywords: | chromatographic separation UTEVA transuranium elements |
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