1. School of Pharmaceutical Sciences University of Geneva CMU – Rue Michel‐Servet 1 Geneva 4 1211 Switzerland
2. Institute of Pharmaceutical Sciences of Western Switzerland University of Geneva CMU – Rue Michel‐Servet 1 Geneva 1211 Switzerland
3. Waters AG Taefernstrasse 14a Baden‐Daetwill 5405 Switzerland
4. Department of Analytical Chemistry Faculty of Pharmacy in Hradec Králové Charles University Heyrovského 1203 Hradec Králové 500 05 Czech Republic
5. LABERCA Oniris, INRAE Nantes F‐44307 France
6. Swiss Laboratory for Doping Analyses University Center of Legal Medicine Lausanne‐Geneva, Centre Hospitalier Universitaire Vaudois, University of Lausanne Chemin des Croisettes 22 Epalinges 1066 Switzerland