1. Grupo de Investigaciones Farmacéutico-Fisicoquímicas, Departamento de Farmacia, Universidad Nacional de Colombia, Bogotá D. C, Colombia
2. Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
3. Faculty of Pharmacy, Near East University, Mersin, Turkey
4. Department of Chemistry, University of North Texas, Denton, TX, USA