| 摘要 |
<p>An ion-exchange media comprising a modified polysaccharide material and a modified silica or a modified particulate polymeric material, said modified materials comprising a polysaccharide and particulate polymeric materials covalently bonded to a synthetic polymer, said synthetic polymer comprising a copolymer made from a polymerization of: (a) a polymerizable compound having a chemical group capable of covalently coupling, directly or indirectly, to said materials; and (b) a polymerizable compound containing (i) an ionizable chemical group or (ii) a chemical group capable of transformation to an ionizable chemical group. The media is useful to selectively remove heavy metal contaminants from aqueous solutions containing said contaminants.</p> |
