Extraction chromatographic studies of cerium(IV) using high molecular weight carboxylic acid

Abstract

Cerium(IV) has been separated by reversed phase extraction chromatographic technique using SRS-l00 (a high molecular weight carboxylic acid) as stationary phase on a column of silica gel with acetate buffer (<em>p</em>H 4.8-5.5) as the mobile phase. Exchange capacity of the exchanger has been determined. Several separations of cerium(IV) from binary and multicomponent mixtures have been achieved. Most of the rare earth elements do not interfere in the extraction of cerium(IV). Cerium(IV) has been separated from Cr(III), Mn(II),. Co(II), Ni(II), Cu(II), Mg(II), Ca(II), Zn(II), Hg(II), Pd(II), La(III), Pr(IIl), Nd(III), Sm(IIl), Cd(III), Dy(IIl), Zr(IV), Th(IV) and U(VI).