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Abstract The objective was to investigate interactions between iron and food chelators in an aqueous environment. The net complexation were investigated by DPASV in a NaClO 4 electrolyte using a platinum electrode. The experimental conditions were simulating the environment of the human duodenum. The results indicated a net coordination affinity between Fe 2+ and the organic acids in the following order; ascorbic acid≈phytate>pyruvate>lactate>acetate. For Fe 3+ 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.
Scheers et al. (Wed,) studied this question.