1. Joint Mass Spectrometry Centre, Chair of Analytical Chemistry, Institute of Chemistry, University of Rostock, Rostock, Germany
2. Joint Mass Spectrometry Centre, Cooperation Group “Comprehensive Molecular Analytics”, Helmholtz Zentrum München—German Research Center for Environmental Health, Neuherberg, Germany
3. Bundeswehr University Munich, Neubiberg, Germany
4. Photonion GmbH, Schwerin, Germany