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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Separation of Hg(II) by using the poly-NTOE(1, 12-diaza-3, 4:9, 10-dibenzo-5, 8-dioxacyclopentadeca-1, 12-ylene-2, 7-dihydroxyoctamethylene) in Liquid Chromatography

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1995, v.8 no.3, pp.259-264
Kim, Hae-Joong
Shin, Young-Kook
Kim, Si-Joong
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Abstract

The separation efficiency of metal ions by using the poly-NTOE(1, 12-diaza-3, 4:9, 10-dibenzo-5, 8-dioxacyclopentadeca-1, 12-ylene-2, 7-dihydroxyoctamethylene) has been determined by column chromatography in aqueous solution. Binding constants and separation factors for several poly-NTOE interactions were measured in aqueous solution. The order of these binding constants and separation factors with metal ions were Co(II)<Ni(II)<Cu(II)>Zn(II) for the transition metal ions and Cd(II)<Pb(II)<Hg(II) for the post transition metal ions. These results were explained in terms of the Irving-Williams series and entropy of desolvation. This experimental results showed good efficiency for separation of Hg(II) from mixtures of transition metal ions and post transition metal ions in aqueous solution.

keywords
separation of Hg(II), poly-NTOE, Liquid Chromatography


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