Quantitative Analysis of a Binary Mixture by Fourier Transform Infrared Photoacoustic Spectroscopy

Abstract
The isotopic shift of the v2 NO3−1 absorption of mixtures of K15NO3 and K14NO3 at 800 and 825 cm−1 has been used to demonstrate that Fourier transform infrared photoacoustic spectroscopy is a technique which is useful for quantitative analysis of solid mixtures.