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Updated: Jun 15, 2026

High Precision Zinc Isotopic Measurements Applied to Mouse Organs
Published on: May 22, 2015
Chromatographic Zinc Isotope Separation by Chelating Exchange Resin
Abstract:
Zinc isotope separations were studied by displacement chromatography using the chelating properties of malate, citrate and lactate exchange resin and EDTA as ligands. After each chromatographic operation, the heavier zinc isotopes were found to preferentially fractionated into the carboxylate complex solution phase. The separation coefficients (epsilon) for zinc isotope separation had the largest value and were obtained for the isotopic pairs (68)Zn/(64)Zn (7.16 x 10(-4)) and (66)Zn/(64)Zn (3.08 x 10(-4)), respectively, at 298 +/- 1 K. The separation coefficient per unit mass differences (epsilon/DeltaM) for the isotopic pair of (68)Zn/(64)Zn was found to range around 1.55 x 10(-4).
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