1. Division of Physical Chemistry, IAMPPNM, NCSR Demokritos, Agia Paraskevi Attikis, 15310 Athens, Greece, http://ipc.chem.demokritos.gr/
2. Laboratory of Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece
3. Laboratory of Organic Chemistry, Department of Chemistry, University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece, http://www.chem.uoa.gr/