Abstract
Abstract A new heteropolyacid salt ion-exchanger, zirconium tungstoarsenate, has been used for preparing impregnated ion-exchange papers. Twenty-nine metal ions have been chromatographed and RF values determined in seven different mixed solvent systems containing 1-propanol and HNO3 or HCl. On the basis of the difference in selectivities for different metal ions on impregnated papers, a large number of binary and ternary separations has been obtained. Some of the important separations achieved are Ag+–Tl+, Ag+–Pt(IV), Zn2+–Hg2+, Sb3+–Bi3+, Zn2+–UO2 2+, Fe2+–Fe3+, Sb3+–Bi3+–Hg2+, Ag+–Ba2+–UO2 2+, and Ag+–Zn2+–Cu2+–Sn2+. The results are compared with those obtained on plain papers.
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