1. Mass Spectrometry Laboratory, Department of Biophysics, Maria Curie-Skłodowska University, Pl. M. C.-Skłodowskiej 1, 20-031 Lublin, Poland
2. Institute for Ion Physics and Applied Physics, University of Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria
3. Department of Basic Sciences in Engineering Sciences, University of Innsbruck, Technikerstraße 13, 6020 Innsbruck, Austria