KCS Publications

HOME > Search > Browsing(BKCS) > Archives

Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 28, Number 3
BKCSDE 28(3)
March 20, 2007

Title	Separation of Lithium Isotopes by Tetraazamacrocycles Tethered to Merrifield Peptide Resin
Author	Youn Seok Jeon, Nak Han Jang, Byung Moo Kang, Young-Shin Jeon, Chang Suk Kim, Ki-Young Choi, Haiil Ryu*
Keywords	Separation, Lithium isotopes, Tetraazamacrocyclic ion exchangers, Merrifield peptide resin
Abstract	Tetraazamacrocyclic ion exchangers tethered to Merrifield peptide resin (DTDM, TTTM) were prepared and the ion exchange capacity of these was characterized. The isotope separation of lithium was determined using breakthrough method of column chromatography. The isotope separation coefficient was strongly dependent on the ligand structure by Glueckauf's theory. We found that the isotope separation coefficients were increased as the values of distribution coefficients were increased. In this experiment the lighter isotope, ⁶Li was enriched in the resin phase, while the heavier isotope, ⁷Li in the solution phase. The ion radius of lighter isotope, ⁶Li was shorter than the heavier isotope, ⁷Li. The hydration number of lithium ion with the same charge became small as mass number was decreased. Because ⁶Li was more strongly retained in the resin than ⁷Li, the isotopes of lithium were separated with subsequent enrichment in the resin phase.
Page	451 - 456
Full Text	PDF

How to access to the WOL for The Bulletin of the Korean Chemical Society ?

The Bulletin of the Korean Chemical Society will be co-published with Wiley-VCH from 2015 towards. The online version of the Journal will thus be available on Wiley Online Library, Wiley(-VCH)'s global online platform.

KCS members can get a free online access to the Bulletin of the Korean Chemical Society in WOL.

Free Access to WOL