1. Department of Analytical Chemistry, Faculty of Pharmacy, Near East University, Nicosia, Turkey
2. DESAM Research Institute, Near East University, Nicosia, Cyprus
3. Department of Medical Biochemistry, Faculty of Medicine, Near East University, Nicosia, Turkey
4. Sierra Leone Standards Bureau, Ministry of Trade and Industry, Freetown, Sierra Leone
5. Department of Chemistry, Faculty of Science, Yusuf Maitama Sule University, Kano, Nigeria