Chemical and radiochemical characterization of depleted uranium in contaminated soils

被引：0
|
作者：
M. B. Radenković
A. B. Kandić
I. S. Vukanać
J. D. Joksić
D. S. Djordjević
机构：
[1] Institute of Nuclear Sciences Vinća,
[2] ICTM-Centre for Chemistry,undefined
来源：
Russian Journal of Physical Chemistry A | 2007年 / 81卷
关键词：
Uranium; Plutonium; 234U; 237Np; Deplete Uranium;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The main results of chemical and radiochemical characterization and fractionation of depleted uranium in soils contaminated during the Balkan conflict in 1999 are presented in the paper. Alpha-spectrometric analysis of used depleted uranium material has shown the presence of man-made radioisotopes 236U, 237Np, and 239, 240Pu traces. The fractionation in different soil types was examined by the application of a modified Tessier’s five-step sequential chemical extraction procedure, specifically selective to certain physical/chemical associations. After ion-exchange-based radiochemical separation of uranium, depleted uranium is distinguished from naturally occurring uranium in extracts on the basis of the isotopic activity ratios 234U/238U and 235U/238U and particular substrates for recently present uranium material in soils are indicated.
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页码：1448 / 1451
页数：3
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