Polarographic analysis for corticosteroids : Part 2. determination of corticosteroids in single-component solutions, suspensions, ointments and creams

Abstract

Differential pulse polarographic methods are presented for corticosteroids in single-component pharmaceutical preparations. Adaptation of the supporting electrolyte to the lipophilicity of the preparation and standard addition methods give fast and reliable procedures. Standard deviations are about 1% for aqueous and alcoholic solutions and about 2% for creams, suspensions and ointments.