Nurgaysinova Nazgul K. RussiaInstitute for Radiation Safety and Ecology of the National Nuclear Center, Republic of Kazakhstan, East Kazakhstan region, Kurchatov, 071100, Beibit atom 2nazgul.nurgaysinova14@mail.ru Author's articles Pre-Concentration and Extraction of Samarium Isotopes by Precipitation of Slightly Soluble Hydroxides and Fluorides of Metals Isolation and radiochemical purification of samarium isotopes using ion exchange resins АВ 17×8 AND KU-2