... Extraction of nitrates of alkali and alkaline earth metals with crown ether into hydrophilic ionic liquid in the presence of salting-out agent . ... The pH profiles of the extraction of alkali and alkaline earth metals have been determined; the influence of salting-out agent concentration on the recoveries has been investigated. Moscow University Chemistry Bulletin . 2009, Vol. ... 3, P. 164 . Copyright (C) Chemistry Dept., ... Copyright (C) Chemisty Department of Moscow State University . ...