Membrane transport of metal ions with lipophilic aminomethylphosphine oxides

Autor: N. V. Kurnosova, S. V. Zakharov, R. R. Davletshin, Airat R. Garifzyanov, R. R. Galeev, R. A. Cherkasov
Rok vydání: 2011
Předmět:
Zdroj: Russian Journal of General Chemistry. 81:1464-1469
ISSN: 1608-3350
1070-3632
DOI: 10.1134/s1070363211070103
Popis: The processes of membrane transport of ions of scandium(III), samarium(III), gadolinium(III), neodymium(III), aluminum(III), and a number of alkali and alkaline earth metals through liquid membrane impregnated with aminophosphoryl carriers of different structures were studied. Selectivity of bis (dialkylphosphinyl)amines towards scandium was found to be significantly higher than the selectivity of diphosphinylpiperazine and monophosphinylamine in particular. The dependence of transfer efficiency on the concentration of substrates and carriers was revealed. Optimal conditions for transporting rare and trace metal ions through the membrane were found, and the mechanism of transmembrane transport was discussed.
Databáze: OpenAIRE