用分光光度法测定有色配合物的表观稳定常数的许多方法中,常见的有连续变化法、摩尔比法和平衡移动法。这些方法原理简单,操作方便,应用广泛。不少文献在运用这些方法时,往往误认为显色剂(配合剂)在配合平衡中消耗甚微,故以加入显色剂总浓度代替配合平衡浓度进行计算,导致结果的偏离。已有文献指出了这种错误并进行了讨论。但这些方法本 Many methods for the determination of the apparent stability constants of colored complexes by spectrophotometry are the continuous variation method, the molar ratio method and the equilibrium shift method. These methods are simple in principle, easy to operate and widely used. Many of the literature in the use of these methods, often mistaken for the developer (complexing agent) in the balance of the balance with little consumption, so to join the total concentration of the reagent instead of with the equilibrium concentration calculation, resulting in deviations. It has been pointed out in the literature and discussed. But these methods are the same