1. Chesapeake
Biological Laboratory, University of Maryland Center for Environmental Science, Solomons, Maryland 20688, United States
2. Helmholtz Zentrum München, Analytical BioGeoChemistry, 85764 Neuherberg, Germany
3. Technische Universität München, Analytical
Food Chemistry, D-85354 Freising-Weihenstephan, Germany
4. Tekniska verken i Linköping AB, 581 15 Linköping, Sweden
5. Department
of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
6. Linköping University, Department of Thematic Studies-Environmental
Change, 581 83 Linköping, Sweden