1. Institute of Analytical Chemistry, Chemo‐ and Biosensors University of Regensburg Regensburg 93053 Germany
2. Department of Life Technologies/Biotechnology University of Turku Kiinamyllynkatu 10 Turku 20520 Finland
3. Department of Biochemistry, Faculty of Science Masaryk University Kamenice 5 Brno 625 00 Czech Republic
4. Institute of Analytical Chemistry of the Czech Academy of Sciences v. v. i. Brno 602 00 Czech Republic