Iron(III) chelating resins-I. Preparation and properties of Sepharose-desferrioxamine gels

Abstract

For the removal of iron(III), Sepharose-desferrioxamine gels were prepared by the coupling of CNBr-activated Sepharose with desferrioxamine (DFO) at pH 7.8-8.3. DFO densities of the gels were 12-23 μmol/ml gel with iron (III) chelating capacities of 8.5-18 μmol/ml gel. The Sepharose-DFO gels with a high affinity for iron (III) were used for the removal of iron (III) from aqueous iron (III) solutions, wine, milk and whey.

Keywords:

• Iron (III)
• chelating resin
• Sepharose
• desferrioxamine
• wine
• milk
• whey