1. Group of Bio-Inorganic Analytical Chemistry, CNRS UMR 5034, Hélioparc, 2, Av. Pr. Angot, F-64053 Pau, France, Graduate School of Pharmaceutical Sciences, Chiba University, Chuo, Chiba 260-8675, Japan, and Department of Analytical Chemistry, Warsaw University of Technology, 00-664 Warsaw, Poland