Institution: | 1.Egyptian Petroleum Research Institute, 1 Ahmed El-Zomor Street, El Zohour Region, Nasr City, Cairo, 11727, Egypt ;2.Chemistry Department, Faculty of Science, King Abdul-Aziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia ;3.Chemistry Department, Faculty of Science, Helwan University, Ain Helwan, Cairo, 11795, Egypt ; |