当前,测定天然水体对某金属的总络合能力即络合容量和表观稳定常数的方法很多,例如伏安法、离子选择电极法、荧光猝灭法、离子交换法、溶解度法、渗析法,…,其中报道较多的是伏安法和离子交换法。但这两种方法都假设有机配位体和金属有机络合物跟固体粒子界面不发生交换(或吸附)作用,这显然与实验事实不符。然而,若不设此假定,理论处理 At present, there are many ways to determine the total complexing ability of natural water to a metal, ie, the complexing capacity and apparent stability constant, such as voltammetry, ion-selective electrode method, fluorescence quenching method, ion exchange method, solubility method, dialysis method , ..., which reported more voltammetry and ion exchange method. However, both of these methods assume that there is no exchange (or adsorption) between the organic ligands and the metal-organic complex with the solid particle interface, which clearly does not correspond to the experimental facts. However, without this assumption, the theoretical treatment