用连续变量法吸收光谱中的等色点同时测定络合物组成及稳定常数

Determination of Composition and Stability Constant of Complexes by Isosbestic Point in Spectra of Job's Method

经证实连续变量法（ｊｏｂ法）吸收光谱中可形成一个等色点。利用该等色点的特性可同时测定络合物组成及稳定常数。方法用于Ｌａ－偶氮胂Ⅲ，Ｎｉ－ＰＡＲ等体系，所得结果令人满意。

here is an isosbestic point in absorption spectra of continuous variation method ,the composition and stability constant of complexes can be determined simultaneously with it.This method is simple and reliable and has been used to La AzoⅢ,Ni PAR systems,the results obtained are satisfactory.