1. National High Magnetic Field Laboratory Geochemistry Group and Department of Earth, Ocean, and Atmospheric Science Florida State University Tallahassee FL USA
2. Now at Research Center on Watershed ‐ Aquatic Ecosystem Interactions University of Quebec at Trois‐Rivieres Trois Rivieres Quebec Canada
3. Now at Pontchartrain Institute for Environmental Sciences, Department of Chemistry University of New Orleans New Orleans LA USA