G. Paun, E. Neagu, A. Tache, G. L. Radu, and V. Parvulescu National Institute for Research-Development of Biological Sciences – Centre of Bioanalysis, 296 Spl.Independentei, PO Box 17-16, 060031, Bucharest 6, Romania Politehnica University of Bucharest, Faculty of Applied Chemistry and Materials Science, 313 Spl.Independentei, 060042, Bucharest, Romania Institute of Physical Chemistry, Splaiul ...