Authors
Ibrahim El-Hallag
Chemistry Department, Faculty of Science, Tanta University, Al-Geish St., Gharbia, Tanta, Egypt
Ahmad Al-Owais
Chemistry Department, Faculty of Science, King Saud University, Riyadh, Saudi Arabia
El-Sayed El-Mossalamy
Chemistry Department, Faculty of Science, Benha University, Fareed Nada St, Benha, Egypt