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中文摘要：
用乙二胺四乙酸二酐（EDTAD）对大豆蛋白进行酰化改性，再用戊二醛交联制得凝胶，研究了凝胶对Pb^2＋、Zn^2＋、Cu^2＋、Ca^2＋的螯合能力，探讨了离子浓度、温度、pH值和改性程度对凝胶金属螯合能力的影响。凝胶对Ca^2＋、Zn^2＋、Pb^2＋、Cu^2＋的最大螯合分别为0．71、0．65、0．75、0．58mmol/g。结果表明，该凝胶具有作为金属螯合剂应用于污水处理中的可能性。
英文摘要：
A modified soy protein gel was synthesized by first acylating the soy protein with ethylenedinaminetetraacetic dianhydride（EDTAD）, followed by corsslinking with glutaraldelyde.The chelating capabilities of the Pb^2＋,Zn^2＋,Cu^2＋ and Ca^2＋ by the gel was studied.The effect of metal concentration, temperature, pH and carboxyl group on the chelating capability of gel was observed. The chelating capabilities for the Pb^2＋,Zn^2＋,Cu^2＋and Ca^2＋ by the gel were 0.71, 0.65, 0.75 and 0.58 mmole/g dry gel, respectively. The results indicated the application of modified soy protein gel to the treatment of metal wastewater to be feasible.
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