Mixture of HIBA and glycolic acid as eluent for effective separation of yttrium and dysprosium by HPLC |
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| Authors: | Haizhou Wu Noriyuki Watanabe Yohichi Gohshi and Ryuji Kotama |
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| Institution: | (1) Department of Applied Chemistry, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113, Japan, JP;(2) Central Research Laboratory, Sumitomo Metal Mining Co., Ltd., 3-18-5, Nakakokubun, Ichikawa, Chiba, 272, Japan, JP |
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| Abstract: | A mixture of 2-hydroxy-2-methylpropanoic acid (HIBA) and glycolic acid, with 1-octanesulfonate (OS) as hydrophobic ion proved
to be successful for the separation of rare-earth elements (REE). If the ratio of HIBA and glycolic acid is suitably adjusted,
it is possible to separate Y from Dy. The resolution of Y and Dy was further improved by controlling the concentration of
HIBA and glycolic acid. The technique was applied successfully to the separation and analysis of highly pure Y2O3 and Dy2O3.
Received: 30 June 1998 / Revised: 3 September 1998 / Accepted: 15 September 1998 |
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