2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/95277CMBR distortion concerned with recombination of the primordial plasma is calculated in frequency band from 1 GHz to 100 GHz in the frame of the standard cosmological model for different values of cosmological density parameters: nonrelativistic matter density $Ω_m$ and baryonic matter density $Ω_b$. Comparison of these results with observational data which will be obtained from planned experiments may be used for independent determination of the cosmological parameters $Ω_m$ and $Ω_b$.6 pages, 7 figuresAstrophysicstext