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. 2017 Jun 15:181:7-12.
doi: 10.1016/j.saa.2017.02.012. Epub 2017 Feb 7.

Quantification of minerals from ATR-FTIR spectra with spectral interferences using the MRC method

Francisco Bosch-Reig  1 , José Vicente Gimeno-Adelantado  2 , Francisco Bosch-Mossi  2 , Antonio Doménech-Carbó  3
Affiliations

Quantification of minerals from ATR-FTIR spectra with spectral interferences using the MRC method

Francisco Bosch-Reig et al. Spectrochim Acta A Mol Biomol Spectrosc. .

Abstract

A method for quantifying the individual components of mineral samples based on attenuated total reflectance - Fourier transform infrared spectroscopy (ATR-FTIR) is described, extending the constant ratio (CR) method to analytes absorbing in a common range of wavenumbers. Absorbance values in the spectral region where the analytes absorb relative to the absorbance of an internal standard absorbing at a wavenumber where the analytes do not absorb, permits the quantification of N analytes using measurements at N fixed wavenumbers. The method was tested for mixtures of albite, orthoclase, kaolin and quartz.

Keywords: ATR-FTIR; Kaolin; Potassium feldspar; Quantification; Quartz; Sodium feldspar.

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