APPLICATION OF FACTOR ANALYSIS-SPECTROPHOTOMETRY TO COMPONENT ANALYSIS OF MIXTURE
Li Tonghua (Department of Chemistry, Tongji University)
Factor analysis-spectrophotometry was used as a method of component analysis for theabsorption spectra of the two-component mixture system which were simulated by the linear combination of Lorentzian functions and the random errors. The numbers and concentrations of components were obtained by a modified algorithm. The results showed that the choice of wavelengths, the error of original data and the spectra over-lapping all affected the accuracy and precision. Some regular patterns were discussed, For an example, the concentrations of both α-ketoglutaric acid and pyruvic acid were simultaneously determined.