Determination of Fe2+ and Fe3+ in aqueous solutions containing food chelators by differential pulse anodic stripping voltammetry
Artikel i vetenskaplig tidskrift, 2010

The objective was to investigate interactions between iron and food chelators in an aqueous environment. The net complexation were investigated by DPASV in a NaClO4 electrolyte using a platinum electrode. The experimental conditions were simulating the environment of the human duodenum. The results indicated a net coordination affinity between Fe2+ and the organic acids in the following order; ascorbic acidphytate>pyruvate>lactate>acetate. For Fe3+ net complexation, the stability was in the order of lactate>phytate>pyruvate>acetate>citrate. In conclusion, DPASV in conjunction with a platinum electrode is suitable for studies in aqueous systems where the net complexation of metal is important.

Fe2+

organic acids

ascorbic acid

Fe3+

voltammetry

Författare

Nathalie Scheers

Chalmers, Kemi- och bioteknik, Livsvetenskaper, Livsmedelsvetenskap

Thomas Andlid

Chalmers, Kemi- och bioteknik, Livsvetenskaper, Livsmedelsvetenskap

Marie Alminger

Chalmers, Kemi- och bioteknik, Livsvetenskaper, Livsmedelsvetenskap

Ann-Sofie Sandberg

Chalmers, Kemi- och bioteknik, Livsvetenskaper, Livsmedelsvetenskap

Electroanalysis

1040-0397 (ISSN) 1521-4109 (eISSN)

Vol. 22 1090-1096

Ämneskategorier

Oorganisk kemi

Styrkeområden

Livsvetenskaper och teknik

DOI

10.1002/elan.200900533