TY JOUR TI thorium(IV), sorbent, sorption, desorption, clay KW Application of chelate forming sorbent containing fragments of 4-amino - thiouracil for sorption extraction of thorium(IV) from clay JO Vestnik of Astrakhan State Technical University AU Bahmanova, F.. AU Hajiyeva, S.. AU Chyragov, F.. PY 2021 IS 2021 PB Astrakhan State Technical University