1. University of Liège, Department of Chemistry, Organic & Biological Analytical Chemistry Group, Allée du 6 aout, B6c, B-4000 Liège (Sart Tilman), Belgium
2. Total
Marketing Services, Centre de Recherche de Solaize, Chemin du
Canal—BP 22, 69360 Solaize, France
3. Jeol U.S.A., 11 Dearborn Road, Peabody, Massachusetts 01960, United States