Separation of lithium isotopes with the N3O2 trimerrifield peptide resin |
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| Authors: | D W Kim H K Park C S Kim Y S Jeon |
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| Institution: | (1) Department of Chemistry, Physical Chemistry Laboratory, College of Natural Sciences, Chungbuk National University, 361-763 Cheongju, Republic of Korea;(2) Department of Chemistry Education, College of Education, Chungbuk National University, 361-763 Cheongju, Republic of Korea;(3) Division of Chemical Analysis, Korea Atomic Energy Research Institute, 305-606 Daejon, Republic of Korea |
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| Abstract: | A study on the separation of lithium isotopes was carried out with 1,13-dioxa-4,7,10-triazacyclopentadecane-4,7,10-trimerrifield
peptide resin N3O23M]. The resin having N3O2 as an anchor group has a capacity of 0.2 meq/g dry resin. Upon column chromatography 0.1 cm (I.D)×30 cm (height)] using
1.0M NH4Cl solution as an eluent, a single separation factor of 1.00104 was obtained from the elution curve and isotope ratios based
on theGlueckauf theory. The heavier isotope,7Li concentrated in the resin phase, while the lighter isotope,6Li enriched in the solution phase. |
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