Preconcentration of Cu(II), Fe(III), Ni(II), Co(II) and Pb(II) ions in some manganese salts with solid phase extraction method using chromosorb-102 resin
Predkoncentriranje Cu(II), Fe(II), Ni(II), Co(II), in Pb(II) ionov v nekaterih manganovih soleh z ekstrakcijo na trdnem nosilcu Chromosorb-102