Membrane extraction of alkaline earth metal by phosphorylated azapodands

Membrane transport properties of the new lipophilic phosphorylated azapodands toward Ca(II), Ba (II), Mg(II), and Sr(II) were studied. The investigation of the processes of passive membrane ion transport showed the high values of the transfer flow of the alkaline earth metals' ions with all carriers. It was found that N,N'-bis(di-p-tolylphosphorylmethyl)-1,8-diamino-3,6-dioxaoctane (I) is the most effective carrier among all compounds studied. [GRAPHICS] .