Successive determination of thorium and rare earths by complexometric titrations |
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| Affiliation: | 1. Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China;2. Nano Science and Technology Program, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China |
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| Abstract: | Thorium can be determined quantitatively by EDTA in the presence of the light rare earths but not in the presence of the heavy rare earths. The successive determination of thorium and heavy rare earths with diethylenetriaminepenta-acetic acid (DTPA) has been found to be feasible and is described. The direct successive determination of thorium and rare earths by combined titration with DTPA and N-yethylethylenediaminetriacetic acid (HEDTA) is also discussed. |
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