1. National Institute of Standards and Technology, Analytical Chemistry Division,
Hollings Marine Laboratory, 331 Fort Johnson Road, Charleston, South
Carolina 29412, United States
2. Institut
Pluridisciplinaire de
Recherche sur l′Environnement et les Materiaux, Equipe de Chimie
Analytique BioInorganique et Environnement, Universite de Pau et des Pays de l′Adour, CNRS UMR 5254,
Helioparc, 64053 Pau, France
3. U.S. Fish and Wildlife Service, 95 Sterling Highway, Suite 1, Homer, Alaska
99603, United States
4. Environment Canada, 11 Innovation Boulevard,
Saskatoon, Saskatchewan S7N 3H5, Canada
5. National Institute of Standards and Technology, Analytical Chemistry Division,
100 Bureau Drive, Gaithersburg, Maryland 20899, United States