Application of a synthetic water-soluble poly(N-maleyl glycine-co-acrylamide) as polychelatogen for inorganic ions in aqueous solutions

The water-soluble poly(N-maleyl glycine-co-acrylamide) (P(MG-co-Am)) reagen t with strong complexing properties for the inorganic ions Cr(III), Co(II), Zn(II), Ni(II), Cu(II), Cd(II), Pb(II), Hg(II), As(V), and Se(IV) was inve stigated in aqueous phase in conjunction with membrane filtration using the Liquid-phase Polymer-based Retention (LPR) technique. The P(MG-co-Am) was shown to be useful for retention of different inorganic ions and their sepa ration from elements not bound to the polymeric reagent. The inorganic ion interaction with the hydrophilic polymer was determined as a function of pH and filtration factor. At higher pH, the copolymer can be applied to the s eparation and preconcentration of most of the inorganic ions. Viscosimetric measurements of the copolymers were performed in the presence of metal ion s at different pH values.