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A novel chelating resin containing many amino and carboxyl functional groups, PS-EDTA resin, was prepared from chloromethylated polystyrene bead by reacting with ethylenediamine and chloroacetate in aqueous phase in sequence. The structure of PS-EDTA resin was characterized by means of infrared spectroscopy, scanning electron microscopy, surface area analysis and thermogravimetry. Adsorption behavior...
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