Novel highly copper(II)-selective chelating ion exchanger based on poly(glycidyl methacrylate-co-ethylene dimethacrylate) beads modified with aspartic acid derivative

摘要

Anchoring the hydroxyaspartic acid onto poly(glycidyl methacrylate-co-ethylene dimethacrylate)(poly(GMA-co-EDMA)) beads or epoxysuccinic acid onto ammonium-modified poly(GMA-co-EDMA) beads resulted in a novel chelating resin, which contained up to 0.37 mmol of the ligand per gram of resin. Batch extraction experiments showed a very high selectivity for Cu~(2) over Zn~(2+) and Cd~(2+) ions in buffered solutions under competetive conditions.