Separation of lithium isotopes by NDOE bonded Merrifield peptide resin

D. W. Kim, J. S. Kim, J. S. Jeon, H. J. Kim, N. S. Lee

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The novel NDOE (1,12,15-triaza-3,4:9,10-dibenzo-5,8- dioxacycloheptadecane) ion exchange resin was prepared. The ion exchange capacity of NDOE azacrown ion exchanger was 0.2 meq/g dry resin. A study on the separation of lithium isotopes was carried out with NDOE novel azacrown ion exchange resin. The lighter isotope, 6Li concentrated in the solution phase, while the heavier isotope, 7Li is enriched in the resin phase. By column chromatography (0.1 cm 1.D.x32 cm height) using 2.0M NH4Cl as an eluent, a separation factor, a = 1.0201 was obtained.

Original languageEnglish
Pages (from-to)215-218
Number of pages4
JournalJournal of Radioanalytical and Nuclear Chemistry
Issue number1
Publication statusPublished - 1999
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis


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