1. Environmental Pollution Control Laboratory, Chemistry Department, Aristotle University of Thessaloniki, Thessaloniki, Greece
2. Department of Mineralogy-Petrology-Economic Geology, School of Geology, Aristotle University of Thessaloniki, Thessaloniki, Greece
3. Directorate of Secondary Education of Western Thessaloniki, Thessaloniki, Greece
4. Laboratory of Pharmaceutical Analysis, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece