1. Department of Chemistry, Faculty of Arts and Sciences, Giresun University, Giresun, Turkey;
2. Kars Vocational School, Kafkas University, Kars, Turkey;
3. Department of Chemistry, Faculty of Arts and Sciences, Bülent Ecevit University, Zonguldak, Turkey;
4. Department of Aircraft Airframe Engine Maintenance, Kapadokya University, Ürgüp, Turkey