本文应用线性扫描伏安法研究了偶氮硝羧及钕-偶氮硝羧络合物的吸附性质。测定了偶氮硝羧的表面浓度和饱和吸附量、一个偶氮硝羧分子的覆盖面积,得出了偶氮硝羧的吸附等温式,求得了偶氮硝羧的吸附平衡常数和吸附自由能,估算了在不同浓度钕时吸附络合物中的偶氮硝羧占电极表面还原的全部偶氮硝羧量的分数,证明了钕-偶氮硝羧示波极谱波的吸附还原机理。 In this paper, the linear sweep voltammetry was used to study the adsorption properties of azo-nitrate and neodymium-azo-nitro-carboxylates. The surface concentration and saturated adsorption capacity of azocarboxylate and the coverage of an azocarboxylate molecule were determined. The adsorption isotherms of azocarboxylate were obtained. The adsorption equilibrium constant and adsorption free energy , The fraction of all azo-nitro-carboxyl groups in the adsorbed complexes was estimated at different concentrations of neodymium, and the adsorption-reduction mechanism of neodymium-azo-nitro-carboxyl oscillopolarographic wave was proved.