[Comparative study of hormonal preparations by isoelectric focusing and polyacrylamide gel electrophoresis].

The authors studied the purity of the hormonal drugs by electrophoresis in polyacrylamide gel and isoelectrofocusing. Identified fractions found in insulin, glucagon, andecaline and in other preparations. Established that isoelectrofocusing has a higher separation power as compared with disc electrophoresis in polyacrylamide gel.