K系数法和最小二乘法在高含量多组分分光光度同时测定中的应用

Simulturcous Spectrophotometric Determination of Macro-amounts of Multicomponents with K-Coefficient Method and Least Square Method

本文用K系数法和最小二乘法数学模型,通过计算机计算,消除各元素间的干扰,实现了高含量多组分的分光光度同时测定。其中三个组分的回收率为99.7—100.8％,仅一个组分的回收率为95.2—111.4％,这是由于它的灵敏度太低而造成的。分析方法简单快速,不需要特殊试剂,可降低成本。

In this paper, theK-coefficients and least square method have been applied to multicomponent simultaneous determination using microcomputer, which not only can eliminated spectral interference but also can achieved the simultaneous determination of macro-amount multicomponents. The recoveries of three components were in the range of 99.7—100.8％,but the fourth was 95.2—111.4％, due to its low senitivity. This method is simple, rapid, inexpensive and need no special reagents.