1. Department Chemie, Ludwig-Maximillians-Universität München, Butenandtstraße 5-13, Haus D, 81377 Munich, Germany
2. Analytical Development, Hexal AG, Industriestraße 25, 83607 Holzkirchen, Germany
3. Bruker BioSpin GmbH, 76287 Rheinstetten, Germany
4. LGC GmbH, Louis-Pasteur-Str. 30, D-14943 Luckenwalde, Germany