中文摘要：

制备了稀土杂多酸盐修饰玻碳电极并研究了它对多巴胺的电催化特性。实验结果表明，该修饰电极对多巴胺有较好的电催化作用，且多巴胺在该修饰电极上的氧化受表面控制。稀土杂多酸盐修饰电极对多巴胺的催化氧化有良好的稳定性和重现性。

英文摘要：

Rare-earth salts,.of heteropoly modified glassy carbon electrode was prepared and the electrochemical characteristics of dopamine in the modified electrode were studied. The results showed that the modified electrode had promoting effects on the dopamine electrochemical oxidation compared with bare glassy carbon electrode , and electrocatalytic oxidation of dopamine was the surface- controlled process. The modified electrode had good stability and reproducibility.