1. Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr el Aini Street, 11562, Cairo, Egypt
2. Chemistry Department, Faculty of Pharmacy, October 6 University, 6 October City, 12585, Giza, Egypt
3. Analytical Chemistry Department, Faculty of Pharmacy, Modern University for Technology and Information, El-hadaba El-Wosta, Mokatam, 5th district, 11571, Cairo, Egypt