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难溶化合物组分络合平衡的研究是比较困难的,因为在不产生沉淀的稀溶液中要测定其平衡组分很多通常的分析方法其灵敏度不满足要求。至今只是对少数这类物质的稳定常数作过测定。在所报道的离子选择电极测定法中,由于相对于金属离子配位体浓度为不足量,所以只能测得一级络合物的稳定常数。本文使用铅离子选择电极测定了
Studies on the complexation of poorly soluble compound components are more difficult because many of the analytical methods whose equilibrium components are to be assayed in dilute solutions that do not produce precipitate do not meet their requirements for sensitivity. To date, only the stability constants of a few such substances have been measured. In the reported ion-selective electrode assay, only the stability constant of the primary complex can be measured since it is deficient with respect to the metal ion ligand concentration. This paper uses lead ion selective electrode determination