1. Polymer Metrology & Technology Department, National Institute of Standards (NIS), Tersa Street, El Haram, P.O. Box 136, Giza 12211, Egypt
2. Bioanalysis Laboratory, National Institute of Standards (NIS), Tersa Street, El Haram, P.O. Box 136, Giza, 12211, Egypt
3. Department of Biochemistry and Molecular Biology, Theodore Bilharz Research Institute, Giza, Egypt
4. Department of Physics, College of Science, Taif University, Taif, Saudi Arabia
5. Water Treatment and Desalination Unit, Hydrogeochemistry Department, Water Resources and Desert Soils Division, Desert Research Center, P.O.B. 11753, Cairo, Egypt