【摘要】 <正> 在分析化学及络合物化学的领域中已广泛采用摩尔比法连续递变法平衡移动法,斜率比法,直线法和三元相图法来测定络合物的组份络合比,但这些方法均不能指出单核或聚核络合物的存在。近年来,国内外已发表了许多文章,运用分光光度法的数据来区别单核与聚核络合物的存在,这些方法中最主要的一种类型是基于稀释对络合物离解度的影响而建立的数学模型。本文所提出的方法虽然也属于这一种类型,然而与其他方法不同的是本文采用比值法(即直接通过数学计算)或直线法(即通过作图判断)求出络更多还原

【Abstract】 A new method is proposed for differentiating mononuclear and polynu clear complexes as well as for determining the stability constant of any complex AmBn. Although the method is based on the effect of dilution on the degree of dissociation, the mathematical treatment is different from previous method based on spectrophotometric data. One of the major disting uishing features is that the number of units in the complex is obtained directly from mathematical equation. In comparison with previous treatments it can be applied wider to mixed ligand and binary complexes. The demonstration of the method has yielded the correct result for two well-studied systems(Fe(Ⅲ)-CAS system and Cu(Ⅱ)-OA system).更多还原