1. Laboratory for Analytical Chemistry, Empa, Dübendorf, Switzerland
2. Institute for Chemical- and Bioengineering, ETH Zürich, Zürich, Switzerland
3. Aquatic Ecosystem Protection Research Division, Environment Canada, Burlington, ON Canada
4. School of Environmental Sciences, University of Guelph, Guelph ON Canada
5. Aurora Research Institute, Inuvik, NT Canada
6. Gamberg Consulting, Whitehorse, YK Canada