Determination of weight distribution ratios of Pa(V) and Np(V) with some extraction chromatography resins and the AG1-X8 resin

被引：23

作者：

Mendes, M. ^{[1
]}

Aupiais, J. ^{[1
]}

Jutier, C. ^{[1
]}

Pointurier, F. ^{[1
]}

机构：

[1] CEA, DAM, DIF, F-91297 Arpajon, France

来源：

ANALYTICA CHIMICA ACTA | 2013年 / 780卷

关键词：

Extraction chromatography; Ion exchange; Separation; Neptunium; Protactinium; Actinides; HIGHLY ENRICHED URANIUM; SEPARATION; TH-230; PA-231; PRECONCENTRATION; PROTOACTINIUM; AGE;

D O I：

10.1016/j.aca.2013.04.019

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Literature data on distribution ratios (D-w) of Np(V) and Pa(V) for the AG1-X8 resin are scarce whereas those related on resin capacity factors (k') values for TEVA, TRU and U/TEVA resins are absent. Therefore, batch extraction experiments for Pa(V) and Np(V) from HCl and HNO3 media were realized, at tracer scale, with AG1-X8 and EIChroM resins (TEVA, TRU and U/TEVA). Based on the new D-w and k' values obtained in this study, a new protocol for Pa/Np separation has been developed leading to a better separation factor of 10(5) and a chemical yield of 97 +/- 3% and 99 +/- 1% for Pa and Np, respectively. A separation of Pa-231 from uranium matrix was successfully tested. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：110 / 116

页数：7

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