1. Department of Applied Chemistry, Faculty of Applied Science, International University of Africa, Khartoum, Sudan
2. Department of Chemistry, Rabigh College of Science & Arts, King Abdulaziz University, Rabigh, Saudi Arabia
3. Taiz University, Faculty of Medical and Health Sciences, Laboratories Department-Taiz, Yemen
4. VerdeEn Chemicals Pvt. Ltd, Hapur District, Uttar Pradesh, India