1. Labeled Compounds Department, Hot Labs. Center, Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
2. Cyclotron Project, Nuclear Research Centre, Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
3. Radioactive Isotopes and Generators Department, Hot Labs. Center, Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
4. Chemistry Department, Faculty of Science, Aswan University, Aswan, Egypt