摘 要: | The effect of type and concentration of aqueous ligand on the chromatographic behaviors of U, Th and rare earth elements has been studied by using an ascending technique. With system TOA-HCl-HNO2 as the developing solvent U, Th and REE can be separated from one another in the presence of large amount of U and then determined. The Rf values for U, Th and REE are 0-0.5 and -1 respectively. More than twenty other elements such as Ca, Sr, Hf, Ti, So, etc. can also he separated from U by using this developing solvent. A method for identifying U-bearing minerals is presented.
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