title: Ion-chromatography of metals with post-column ion displacement.
abstract: A post-column reagent mixture of Eriochrome Black T and magnesium-EDTA complex is added to the eluent from an ion-chromatograph. Eluted metal cations displace the magnesium, which then forms a complex with the Eriochrome Black T. The absorbance of this complex is measured at 520 nm. Detection limits for several cations are in the mug/ml range.
authors.affiliation: Department of Chemistry, University of Saskatchewan, Saskatoon, Sask. Canada S7N 0W0.
authors.forename: C J
authors.initials: CJ
authors.lastname: Bowles
authors.forename: L W
authors.initials: LW
authors.lastname: Bader
authors.forename: K W
authors.initials: KW
authors.lastname: Jackson