1. Pharmaceutical Analytical Chemistry Dept.
2. Faculty of Pharmacy
3. Assiut University
4. Assiut, Egypt
5. Pharmaceutical Chemistry Dept.
6. King Abdulaziz University
7. Jeddah, Kingdom of Saudi Arabia
8. Analytical Chemistry Dept.
9. Minia University
10. Minia, Egypt
11. October 6 University
12. Giza, Egypt