1. Department of Chemistry, Tafila Technical University, P.O. Box 179, Tafila 66110, Jordan
2. Department of Chemistry, University College in Al-Qunfudah, Umm Al-Qura University, 1109 Makkah Al-Mukarramah, Saudi Arabia
3. Department of Applied Chemical Sciences, Jordan University of Science & Technology, P.O. Box 3030, Irbid 22110, Jordan