Solvent Effect in Isotope Exchange Reaction of Strontium by Liquid Chromatography using a Cryptand (2B,2,2) Polymer

Strontium isotopes were fractionated using liquid chromatography with a cryptand (2 B ,2,2) polymer as a stationary phase. In this study, we observed that the single stage isotope enrichment factor of 84 Sr shows the following order, water[6.4×10 −3 ]>MeOH[4.9×10 −3 ]>DMF[1.1×10 −3 ]. The enri...

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Bibliographic Details
Published in:Solvent extraction and ion exchange 2006-12, Vol.24 (6), p.915-929
Main Authors: Shibahara, Yuji, Yasaka, Yuta, Izumi, Yoshinobu, Ema, Kimiko, Takeda, Shin-ichi, Nishijima, Shigehiro, Fujii, Toshiyuki
Format: Article
Language:English
Subjects:
cryptand polymer
donor number
Isotope fractionation
solvation
strontium
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Summary:Strontium isotopes were fractionated using liquid chromatography with a cryptand (2 B ,2,2) polymer as a stationary phase. In this study, we observed that the single stage isotope enrichment factor of 84 Sr shows the following order, water[6.4×10 −3 ]>MeOH[4.9×10 −3 ]>DMF[1.1×10 −3 ]. The enrichment factors observed in this study did not show a mass-dependent profile, indicating that the mass-independent isotope effect affects isotope enrichment phenomena. The mass-dependent and the mass-independent isotope effects that influence the enrichment factor of 84 Sr are related to the donor number linearly, implying that the solvation strongly affects the isotope effect.
ISSN:0736-6299
1532-2262
DOI:10.1080/07366290600952725