Detailed Analysis of Raman Spectra for Express Assessment of the Hydroxyapatite Quality

Abstract

Results of extended spectral analysis of samples of hydroxyapatite powders using Raman spectroscopy were presented. Spectral features for samples prepared at different exposures of demineralization and heat treatment are established. Mathematical methods for improving the resolution of spectral contours and PCA analysis for estimating the organomineral composition of the samples were used. It is shown that the introduced criteria are representative and can be used in the express assessment of the quality of hydroxyapatite.