Magnesium Isotope Fractionation in Cation-Exchange Chromatography
- 1 November 1987
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 22 (11) , 2203-2215
- https://doi.org/10.1080/01496398708068608
Abstract
Band displacement chromatography of magnesium has been carried out successfully for the purpose of magnesium isotope separation by using a strongly acidic cation-exchange resin and the strontium ion as the replacement ion. A small but definite accumulation of the heavier isotopes (25Mg, 26Mg) has been observed at the front parts of the magnesium chromatograms. The heavier isotopes have been fractionated preferentially into the solution phase. The single-stage separation factors have been calculated for the 25Mg/24Mg and 26Mg/24Mg isotopic pairs at 25[ddot]C. The reduced partition function ratios of magnesium species involved in the present study have been estimated.Keywords
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