1. Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh 11451, Saudi Arabia
2. Forensic Chemistry Department, College of Forensic Sciences, Naif Arab University for Security Sciences, Riyadh, Saudi Arabia
3. Department of Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
4. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Helwan University, Egypt