Comparison between us pharmacopeial methodology by IPC and FSCE developed method for determination of metformin hydrochloride in the presence of its degradation products - Galdos, Angel Arturo Gaona; Silva, Viviane Benevenuti; Aurora-Prado, Maria Segunda; Singh, Anil Kumar; Santoro, Maria Inês Rocha Miritello; Kedor-Hackmann, Erika Rosa Maria (International Symposium on Pharmaceutical and Biomedical Analysis, 2011)