1. Joint
Mass Spectrometry Centre, Institute of Chemistry, Chair of Analytical
Chemistry, University of Rostock, Rostock, D-18057, Germany
2. Joint
Mass Spectrometry Centre, Cooperation Group “Comprehensive
Molecular Analytics”, Helmholtz Zentrum Muenchen, Neuherberg, D-85764, Germany
3. Photonion GmbH, Schwerin, 19061, Germany
4. GR&D, British American Tobacco, Southampton, SO15 8TL, United Kingdom