1. Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey
2. Central Researching Laboratory, Ağrı İbrahim Çeçen University, Agri, Turkey
3. Vocational School, Ağrı İbrahim Çeçen University, Agri, Turkey
4. Faculty of Arts and Science, Agri İbrahim Çeçen University, Agri, Turkey