Stability-indicating CZE method for the determination of metformin hydrochloride and their degradation products in a pharmaceutical formulation - Galdos, Angel Arturo Gaona; Tavares, Marina Franco Maggi; Aurora-Prado, Maria Segunda; Santoro, Maria Inês Rocha Miritello; Kedor-Hackmann, Erika Rosa Maria (Latin-American Symposium on Biotechnology, Biomedical, Biopharmaceutical and Industrial Applications of Cappilary Electrophoresis and Microchip Technology, 2012)