1. Department of Analytical Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, M. C. Sklodowska Sq. 3, 20-031 Lublin, Poland
2. Institute of Environmental Technology, Centre for Energy and Environmental Technologies, VŠB—Technical University of Ostrava, 17. listopadu 15/2172, 708 00 Ostrava, Czech Republic