1. Department
of Chemistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
2. Nicholas
School of the Environment, Duke University, Durham, North Carolina 27708, United States
3. Department
of Fisheries and Oceans Canada, Freshwater Institute, Winnipeg, MB R3T 2N6, Canada
4. Fort Richmond Collegiate, Winnipeg, MB R3T 3B3, Canada
5. Department
of Chemistry, McGill University, Montreal, QC H3A 0G4, Canada
6. Wellington Laboratories, Inc., 345
Southgate Drive, Guelph, ON N1G 3M5, Canada