Polyelectrolyte Sorbents for Ion Chromatography

A method for the synthesis of new anion exchangers for ion chromatography has been proposed. The method is based on the fact that interaction of water-soluble anionic polymers with materials containing negatively charged sulfo groups on the surface gives rise to polyelectrolyte complexes. It is demonstrated that replacement of functional groups in molecules of the polymer affects the selectivity of the ion-chromatographic determination of ions. Recommendations are given for selecting a polymer for the determination of mixtures of inorganic anions and anionic complexes of transition metals in ethylenediaminetetraacetic acid.