1. Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut, Egypt
2. Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
3. Department of Analysis and Evaluation, Egyptian Petroleum Research Institute, Cairo, Egypt
4. Department of Chemistry, Faculty of Science, Al-Azhar University, Cairo, Egypt