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Quantitative Analysis of Binary Mixtures. I. General Method

Volume 35, Number 4 (Aug. 1981) Page 421-428

Diem, Hugh E.; Krimm, Samuel


A general spectroscopic method for the analysis of binary mixtures which does not require external calibration has been developed. Spectra of the original mixture and of the mixture following some fractionation procedure are obtained. The method is based on the scaling factors required to null the components, one at a time, in successive absorbance subtractions of the two spectra. The accuracy is improved by a factor of approximately ten more than that of an earlier method. The effect of errors in the scaling factors on the analytical results is considered.