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分光光度法与计算数学结合同时直接测定多组分体系已有多种方法,其中以经典方程组法,最小二乘法等应用较多,这些方法一般将吸光度与浓度之间的关系看作线性,且假设吸光度具有加和性,事实上混合体系成分复杂,各组分分子间存在相互作用,因此处于混合溶液中的组分的性质与其为单一组分时会有较明显的不同,吸光度不再完全符合比尔定律,加和性也会随波长不同而产生程度不同的偏离,单组分测定中有
There are many methods for the simultaneous determination of multi-component systems by the combination of spectrophotometry and computational mathematics. Among them, the classical equations method and the least squares method are widely used. These methods generally regard the relationship between absorbance and concentration as a linear, And assuming that the absorbance is additive, in fact, the complexity of the mixed system components, the interaction between the various components of the molecules, so the nature of the components in the mixed solution and its components as a single there will be more obvious differences, absorbance no longer In full compliance with Bill’s law, additivity will vary with the wavelength of different degrees of deviation, single-component determination of