Quantitative analysis of cellulose nitrates by Fourier transform infrared spectroscopy

Quantitative express analysis of nitrogen content in cellulose nitrates by Fourier transform infrared spectroscopy has been developed. The slope of the dependence of the ratio of the band intensity (and area) to sample weight in a tablet, on the nitrogen content in a sample was used to find the reduced extinction coefficients for quantitative analysis of nitrogen content in cellulose nitrate samples by IR spectroscopy. The results were compared with the nitrogen content values in the same samples determined by the ferrosulfate method.