6533b861fe1ef96bd12c4e2a

RESEARCH PRODUCT

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

Francisco Bosch-reigJosé-vicente Gimeno-adelantadoAntonio Doménech-carbóFrancisco Bosch-mossi

subject

AnalyteChemistryAnalytical chemistry02 engineering and technology010501 environmental sciencesengineering.material021001 nanoscience & nanotechnology01 natural sciencesAtomic and Molecular Physics and OpticsAnalytical ChemistryFtir spectraAbsorbanceOrthoclaseAlbiteAttenuated total reflectionengineeringFourier transform infrared spectroscopy0210 nano-technologyInstrumentationQuartzSpectroscopy0105 earth and related environmental sciences

description

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.

10.1016/j.saa.2017.02.012https://pubmed.ncbi.nlm.nih.gov/28314205