1. Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
2. College
of Education, University of Illinois, Champaign, Illinois 61820, United States
3. Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
4. Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
5. School of Freshwater Sciences, University of Wisconsin, Milwaukee, Wisconsin 53204, United States
6. Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
7. Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
8. Environmental
Chemistry and Technology Program, University of Wisconsin, Madison, Wisconsin 53706, United States