University of Tehran Journal of Sciences, Islamic Republic of Iran 1016-1104 8 2 1997 06 01 SELECTIVE TRANSPORT AND EXTRACTION OF ALKALI METAL CATIONS (Na & K ) THROUGH CHLOROFORM LIQUID MEMBRANE BY DIETHYLENE GLYCOL MONOBUTYL ETHER AND DIETHYLENE GLYCOL DIBUTYL ETHER - 31422 EN Journal Article A liquid membrane containing diethylene glycol monobutyl ether (2) shows specificity for K ion in transport while diethylene glycol dibutyl ether (1) was selective for Na over K . As an extractant, ligand 2 exhibited pronounced extraction selectivity for K over Na in comparison with ligand 1 https://jsciences.ut.ac.ir/article_31422_8557ce8d4d47173fb5788fa25b2aa3d9.pdf