1. Scientist Emeritus, National Institute of Standards and Technology (NIST), Gaithersburg, MD, USA
2. National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, USA
3. Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA, USA
4. Geochemical and Environmental Research Group, Texas A&M University, College Station, TX, USA
5. Department of Chemistry, University of Central Florida, Orlando, FL, USA
6. Marine Science Institute, The University of Texas at Austin, Port Aransas, TX, USA