ChemInform Abstract: Efficient and Highly Selective Copper(II) Transport Across a Bulk Liquid Chloroform Membrane Mediated by Lipophilic Dipeptides.
✍ Scribed by M. C. CLEIJ; P. SCRIMIN; P. TECILLA; U. TONELLATO
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 30 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0931-7597
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✦ Synopsis
Efficient and Highly Selective Copper(II) Transport Across a Bulk Liquid Chloroform Membrane Mediated by Lipophilic Dipeptides. -Eleven simple dipeptides are prepared and investigated as carrier for the transport of Cu(II), Zn(II), and Ni(II) from an aqueous pH = 5.6 buffer source to a 0.1 M HCl receiving phase across a bulk chloroform membrane. Most of them like the long-chain dipeptides (I)-(III) show a quite remarkable transport efficiency for Cu(II), sometimes superior to that of the industrial extractant Kelex 100. Moreover, remarkable diastereomeric effects are observed in the rate of uptake and release of Cu(II) ion.