Development and validation of a method for quantitative determination of econazole nitrate in cream formulation by capillary zone electrophoresis - Galdos, Angel Arturo Gaona; Zanolli Filho, Luiz Antonio; Tavares, Marina Franco Maggi; Aurora-Prado, Maria Segunda; Santoro, Maria Inês Rocha Miritello; Kedor-Hackmann, Erika Rosa Maria (Journal of Chromatography A, 2008)