Cation Exchange Separation and Determination of Ruthenium in a Simulated Spent Nuclear Fuel

Cation exchange separation and inductively coupled plasma atomic emission spectrometric(ICP-AES) determination of ruthenium in HCl solutions were studied to quantitatively determine ruthenium in spent nuclear fuels. Ruthenium-bearing samples were dissolved with the mixed acid solution(9 : 1 mole ratio, HCl-HNO$_3$) using an acid digestion bomb. Based on the absorption spectra and ion exchange behaviour of ruthenium in hydrochloric acid media, its possible chemical species were discussed. On a cation exchange column (0.7 ${\times}$ 8.0 cm) packed with AG 50W ${\times}$ 8(100~200 mesh) and equilibrated with 0.5 M HCl, ruthenium was eluated with 0.5 M HCl while uranium was retained on the column. The established separation method was applied to a simulated spent nuclear fuel and resulted in the recovery of 98.5% with a relative standard deviation of 0.7%.

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@article{ JCGMDC_2000_v44n6_526} ,title={Cation Exchange Separation and Determination of Ruthenium in a Simulated Spent Nuclear Fuel} ,volume={6} , number= {6} , journal={Journal of the Korean Chemical Society} , publisher={Korean Chemical Society} , author={Moo-Yul, Suh and Se-Chul, Sohn and Se-Chul, Lee and Kwang-Soon, Choi and Do-Yang, Kim and Yeong-Jae, Park and Kyoung-Kyun, Park and Kwang-Yong, Jee and Won-Ho, Kim} , year={2000} , month={Dec}