Abstract
Isotope effects of iron in Fe (II) -Fe (III) electron exchange system were studied using anion exchange chromatography. It was found that the heavier isotope is enriched at the rear part of the iron adsorption band. The results indicate that the heavier isotope is preferentially fractionated in Fe (III) chloride complex ions in the anion exchange resin phase. The single stage separation coefficient, ε, observed for 57Fe/56Fe isotopic pair was 2.06×10-4 at 333 K. The height equivalent to theoretical plate was calculated to be 0.68mm.
