Chromatographic Zinc Isotope Separation by Chelating Exchange Resin

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 comple...

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Detalles Bibliográficos
Autores principales: Ding, Xingcheng, Nomura, Masao, Suzuki, Tatsuya, Fujii, Yasuhiko
Formato: Texto
Lenguaje:English
Publicado: Vieweg Verlag 2010
Materias:
Original
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2827798/
https://www.ncbi.nlm.nih.gov/pubmed/20208981
http://dx.doi.org/10.1365/s10337-009-1448-6
Descripción
Sumario: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 (ε) for zinc isotope separation had the largest value and were obtained for the isotopic pairs (68)Zn/(64)Zn (7.16 × 10(−4)) and (66)Zn/(64)Zn (3.08 × 10(−4)), respectively, at 298 ± 1 K. The separation coefficient per unit mass differences (ε/ΔM) for the isotopic pair of (68)Zn/(64)Zn was found to range around 1.55 × 10(−4).

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