Rapid determination of the identity of aqueous drug solutions

The stationary stability of giant heterophase clusters (GHCs) of water in samples of sodium chloride isotonic aqueous solutions from three manufacturers has been studied. The influence of the NaCl concentration on the relaxation kinetics of GHCs is established. A method for determining the identity of aqueous drug solutions without violating the integrity of the packaging is developed. © 2009 Springer Science+Business Media, Inc.