Skvortsova, L.N., Zakharova, E.A., Zajika, Y.G. and Karmushakova, G.N. 2019. Application of ion-exchange for separation and analysis of various se-compounds in water extractions of plants and nutrition additives. Sorbtsionnye i Khromatograficheskie Protsessy. 10, 2 (Nov. 2019).