Comments on paper: Veronika Silliková, Jana Jakubčinová, Miroslav Horník, Igor Gomola, Silvia Dulanská, “Determination of caesium-137 in water samples using modified carbon microfibers”, J. Radioanal. Nuclear Chem. (2022) 331:1275–1284. https://doi.org/10.1007/s10967-022–08212