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Lithium Isotope Fractionation during Transport through Liquid Membrane with Oligomethylene-Bridged Bisphenanthroline Derivatives

K. Ooi, H. Kanoh, H. Sughihara, and K. Hiratani
[Chem. Lett., Vol.1997, pp.615-616, 1997]

Lithium transport through a liquid membrane with bisphenanthroline derivatives resulted in the isotope fractionation with separation factors between 1.008 and 1.020. The lithium isotope fractionation depended on the length of the oligomethylene bridge between two phenanthroline units. The isotope separation factor was the highest for the sample bridged by heptamethylene groups.

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