q-BWF functions to deconvolute the attenuated total reflectance infrared spectra of the barite-group minerals

17 September 2024, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Here we consider the minerals in the barite group and their attenuated total reflectance (ATR) infrared spectra, that we can find in the RRUFF database. We apply the q-BWF functions to deconvolute the components of the spectra. The q-BWF functions are the asymmetric line shapes that Sparavigna defined in 2023, to generalize the BWF (Breit-Wigner-Fano) functions. Good results are obtained for the deconvolution of barite, celestine and anhydrite ATR-IR spectra.

Keywords

Infrared spectroscopy
ATR spectroscopy
q-Gaussian functions
q-BWF functions
Barite-group minerals

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