在 DGT溶液浸渍石墨电极技术取得良好实验室和工业性试验结果基础上,进行了防氧化机理的探讨。DGT 溶液对石墨电极的防氧化作用是由于浸渍物阻塞了电极表层的开气孔和封闭碳的活性部位,随着浸渍量的增加,浸渍物在电极表面生成连续的氧的扩散阻挡层,使电极的抗氧化性显著提高。采用抗氧化抑制因数 I_f 表示浸渍电极的抗氧化能力,并进行了理论推导,得出浸渍电极防氧化数学模型。 In the DGT solution impregnated graphite electrode technology to obtain good laboratory and industrial test results based on the oxidation mechanism was discussed. DGT solution of graphite electrode oxidation is due to the impregnated obstruction of the electrode surface of the open pores and the active site of the closed carbon, with the impregnation volume increases, the impregnation of the electrode surface to generate a continuous oxygen diffusion barrier, the electrode The oxidation resistance is significantly improved. The anti-oxidation inhibition factor I_f was used to indicate the anti-oxidation ability of the impregnated electrode, and the theoretical deduction was made to obtain the mathematical model of oxidation resistance of the impregnated electrode.