1. Department of Chemistry, Memorial University of Newfoundland, 45 Arctic Ave., St. John’s, NL A1C 5S7, Canada
2. Canada Centre for Inland Waters, Environment and Climate Change Canada, 867 Lakeshore Rd., Burlington, OntarioL7S 1A1, Canada
3. Departments of Chemistry and Physical & Environmental Sciences, University of Toronto, 1265 Military Trail, Toronto, Ontario M1C 1A4, Canada
4. Department of Chemistry, Dartmouth College, Hannover, New Hampshire 03755, United States
5. Waters Corporation, 34 Maple St., Milford, Massachusetts 01757, United States