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http://dx.doi.org/10.5806/AST.2007.20.2.131

Direct determination of gadolinium in urania-gadolinia nuclear fuels by inductively coupled plasma atomic emission spectrometry  

Choi, Kwang-Soon (Nuclear Chemistry Research Center Korea Atomic Energy Research Institute)
Suh, Moo-Yul (Nuclear Chemistry Research Center Korea Atomic Energy Research Institute)
Lee, Chang-Heon (Nuclear Chemistry Research Center Korea Atomic Energy Research Institute)
Han, Sun-Ho (Nuclear Chemistry Research Center Korea Atomic Energy Research Institute)
Jee, Kwang-Yong (Nuclear Chemistry Research Center Korea Atomic Energy Research Institute)
Publication Information
Analytical Science and Technology / v.20, no.2, 2007 , pp. 131-137 More about this Journal
Abstract
The urania-gadolinia fuels were dissolved with nitric acid. The analytical conditions of ICP-AES for the direct determinations of gadolinium in the uranium matrices without separation process were investigated. Based on the effect of uranium on gadolinium intensity, the best wavelength for gadolinium was 336.223 nm. The relative deviation of two methods, direct and indirect measurements with anion exchange chromatography, was less than 5 %. Therefore it was possible for this procedure directly to measure 5~10 wt.% of gadolinium in urania-gadolinia fuels without separation by ICP-AES.
Keywords
urania-gadolinia fuel; direct determination; gadolinium; ICP-AES;
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