1. Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany
2. Institute of Chemistry, NAWI Graz, University of Graz, Universitätsplatz 1, 8010 Graz, Austria
3. TraceAge—DFG Research Unit FOR 2558, Berlin–Potsdam–Jena, Germany
4. Food Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, Gaußstraße 20, 42119 Wuppertal, Germany
5. German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Str. 8-10, 10589 Berlin, Germany