Stanovení minerálů v břidlicích multikomponentní analýzou infračervených spekter

Abstract

Several analytical methods are concerned with phase analysis of the rock minerals today. The most common metods are X-ray Powder Diffraction (XRD), Electron Microanalysis, Mössbauer spectroscopy, Infrared spectroscopy (IR). In this study was explored the application of multicomponent analysis with IR spectra of the claystone and clay slate. Calibration models were created by using the multicomponent partial least-squares (PLS) technic. The results obtained from multicomponent statistical analysis are consistent with the results of referential XRD analysis. The average error of measurement was 10-20 % by wt. For the description of the repeatability of measurement was applied relative standard deviation, which was  5 %. The higher error and worse repeatability of measurements were detected for very low content of minerals.