Abstract
The determination of carbonate ion and some transition metals in the form of their EDTA anionic complexes by single-column ion chromatography (IC) is reported. Determinations were carried out on a column packed with a silica-based sorbent with a tetraalkylammonium base, linked by long hydrocarbon radicals. The simultaneous separation and determination of the anions F −, Cl −, NO 2 −, Br −, NO 3 −, HPO 4 2− and SO 4 2− and anionic EDTA complexes of Al 3+, CU 2+, Zn 2+, Cd 2+ and Pd 2+ were achieved. Sodium citrate solution (pH 3.9) was used as the eluent for the determination of carbonate ion and potassium hydrogenphthalate solution (pH 6.5) for the determination of anionic metal-EDTA complexes.
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