Abstract
A new method is proposed for the separation of gadolinium(III) and lanthanum(III) in aqueous medium by nanofiltration combined with a complexation step. First DTPA was chosen as ligand for a selective Gd(III)/La(III) complexation. Having investigated the influence of three factors (pH, temperature and amount of ligand) for the selective complexation of DTPA towards Gd(III) and La(III), the system is then combined with a nanofiltration separation process to remove 92% of initial Gd(III) and only 12% of initial La.
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Chitry, F., Garcia, R., Nicod, L. et al. Separation of gadolinium(III) and lanthanum(III) by nanofiltration-complexation in aqueous medium. J Radioanal Nucl Chem 240, 931–934 (1999). https://doi.org/10.1007/BF02349876
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DOI: https://doi.org/10.1007/BF02349876