Doelker, E [In vitro liberation of an amine salt by a hydrosoluble polyelectrolyte. 1. Current view of the problem and description of an in vitro test]. [electronic resource] - Pharmaceutica acta Helvetiae - 495-507 p. digital Publication Type: Journal Article ISSN: 0031-6865 Subjects--Topical Terms: AminesChemistry, PharmaceuticalElectrolytesEphedrineGelsHydrogen-Ion ConcentrationRheologySolubility