prof. Ing. Libor Čapek, Ph.D. libor.capek@upce.cz Ing. Helena Drobná, Ph.D. Faculty of Chemical Technology helena.drobna@upce.cz Ing. Lada Dubnová Faculty of Chemical Technology lada.dubnova@upce.cz Ing. Vendula Meinhardová Faculty of Chemical Technology vendula.meinhardova@upce.cz