Algorithm for applying regression analysis to determine the concentration of the main component in mineral raw materials by X-ray fluorescence methodIgor Kovalev, Denis Gruzenkin, Malokhat Juraeva, Alisher Gafforov, Valeria Podoplelova and Dmitry BorovinskyE3S Web Conf., 417 (2023) 01010DOI: https://doi.org/10.1051/e3sconf/202341701010