Abstract
A new chelate-forming polyelectrolytic resin bearing 5-sulfosalicylate counterions was prepared by an ion-exchange method. The resin was amorphous powder and therefore, batch method of separation endangered leaching of the ligand to the some extent. Nevertheless, the selective preconcentration and quantitative separation of Fe3+, Co2+, Cu2+ and Ni2+ were found to be feasible by employing chelating resin-impregnated paper chromatographic method, where separations involved a pH-independent differential migration procedure, based on solubility product equilibria, with aqueous mobile phases. The selectivity of resin for heavy metals, as monitored by differential pulse anodic stripping voltammetry, was found in the order Fe3+>Co2+>Ni2+≈Cu2+.
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