The Influence of Sample Acidification on the Speciation of Iron(II) and Iron(III)

摘要

The influence of sample acidification on the speciation of iron in aqueous solutions has been investigated. When hydrochloric acid is used, iron(II) is transformed into several moieties, believed to be chloro-complexes, whose chromatographic properties are quite different from those of the parent iron(II) species. This process is favored by high (0.5 M) HCl concentrations.