1. Department of Analytical Chemistry; Physical Chemistry and Chemical Engineering; University of Alcalá; Alcalá de Henares Madrid Spain
2. University Institute of Research in Police Sciences (IUICP); University of Alcalá; Alcalá de Henares Madrid Spain
3. Department of Chemistry; University of Basel; Basel Switzerland
4. EAWAG; Swiss Federal Institute of Aquatic Science and Technology; Kastanienbaum Switzerland