title: The influence of thiourea on the cation-exchange behaviour of various elements in dilute nitric and hydrochloric acids.
abstract: Cation-exchange distribution coefficients for 21 elements between the cation-exchange resin AG50W-X4 and dilute nitric and hydrochloric acid containing up to 2.0M concentration of thiourea are presented. The ion-exchange behaviour of the elements and some possible separations are discussed. Four multi-element elution curves are presented, demonstrating the separation of the combinations Ga(Ag, Cu)Zn(Cd, Pb, In, Sn[IV]), CoPbSbTe, ZnCdBiHg, and AgCdInAu.
authors.affiliation: National Chemical Research Laboratory, Council for Scientific and Industrial Research, P.O. Box 395, Pretoria 0001, Republic of South Africa.
authors.forename: C H
authors.initials: CH
authors.lastname: Weinert
authors.forename: F W
authors.initials: FW
authors.lastname: Strelow
authors.forename: R G
authors.initials: RG
authors.lastname: Böhmer