Validation of gravimetry for high-accuracy analysis of uranium

被引：3
|
作者：
Ruas, Alexandre [1 ]
Ben Messaoud, Warda [1 ]
Rivier, Cedric [1 ]
Solinhac, Isabelle [1 ]
Le Roudil, Danie [1 ]
机构：
[1] CEA, Radio Chem Processes Dept, Nucl Energy Div, F-30207 Bagnols Sur Ceze, France
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 311卷 / 03期
关键词：
Analysis; Gravimetry; Calcination; Uranium; Method validation; Uncertainty; THERMAL-DECOMPOSITION; URANYL-NITRATE; MEASUREMENT UNCERTAINTY; DEHYDRATION;
D O I：
10.1007/s10967-016-5116-7
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Gravimetry after calcination is an assay method for determining the quantity of a given element from the mass measurement. This method, adapted for high concentration and purity uranium solution, has the advantage of not being related to a chemical standard and of having an extremely high trueness and precision. Besides, the method is simple, robust and cost-effective. The results of the analytical method validation are shown. Expanded uncertainties, assessed thanks to a reference uranium nitrate solution, are lower than 0.2%. The technique can thus be used in addition to the well-known isotopic dilution thermal-ionisation mass-spectrometry.
引用
收藏
页码：1831 / 1838
页数：8
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