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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 22, Number 6
BKCSDE 22(6)
June 20, 2001 
 
Title
 Enrichment of Magnesium Isotopes by Monoazacrown Bonded Merrifield Peptide Resin
Author
 Dong Won Kim
Keywords
 Magnesium isotope separation, Monoazacrown resin, Capacity, Isotope effect, Elution chromatography.
Abstract
 Magnesium isotope separation was investigated by chemical ion exchange with the 1-aza-12-crown-4 bonded Merrifield peptide resin using an elution chromatographic technique. The capacity of the novel azacrown ion exchanger was 1.0 meq/g dry resin. The heavier isotopes of magnesium were enriched in the resin phase, while the lighter isotopes were enriched in the solution phase. The single stage separation factor was determined according to the method of Glueckauf from the elution curve and isotopic assays. The separation factors of 24Mg2+ - 25Mg2+ , 24Mg 2+ - 26Mg2+ , and 25Mg2+ - 26Mg2+ were 1.008, 1.019, and 1.006, respectively.
Page
 570 - 574
Full Text
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