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用Cu2＋离子将壳聚糖螯合基团保护后再用戊二醛交联，制得螯合基因得到保护的壳聚糖果－戊二醛树脂，利用该树脂对Au的酸性溶液在不同酸度、溶液浓度及树脂用量条件下进行了静态吸附实验，研究了在不同温度和不同初始浓度下对吸附金的动力学过程．结果表明：该树脂对An（Ⅲ）吸附容量分别为88mAu／g干树脂；吸附速率快，在30min内吸附率可达80％．
The Cu2 + ions were used to protect the chelating groups of chitosan and then cross-linked with glutaraldehyde to obtain the chelate-protected chitosan-glutaraldehyde resin. By using the resin, the acidity of Au in different acidity, Solution concentration and the amount of resin used under static adsorption experiments were studied at different temperatures and different initial concentrations of gold adsorption kinetics process. The results showed that the adsorption capacity of the resin to An (Ⅲ) was 88mAu / g dry resin, respectively. The adsorption rate was fast and the adsorption rate was up to 80% within 30min.