1. Çayırlı Vocational School, Erzincan University, Erzincan, Turkey
2. Università degli Studi di Firenze, Polo Scientifico, Laboratorio di Chimica Bioinorganica, Via della Lastruccia, Sesto Fiorentino (Florence), Italy
3. Department of Chemistry, Ataturk University, Science Faculty, Erzurum, Turkey
4. Department of Agricultural Biotechnology, Faculty of Agriculture, Ondokuz Mayıs University, Samsun, Turkey