Affiliation: | 1. Institute of Chemistry, E?tv?s Loránd University, 1117 Pázmány Péter sétány 1a, Budapest (Hungary), Fax: (+36)?1‐372‐2909;2. Research Group of Peptide Chemistry, Hungarian Academy of Sciences, E?tv?s L. University (Hungary);3. Institute of Analytical Chemistry, Chemo‐ and Biosensors, University of Regensburg, 93040 Regensburg (Germany), Fax: (+49)?941‐943‐4065 |