title: Selenium Concentrations in Natural and Environmental Waters.
authors.affiliation: Department of Analytical Chemistry, Nutrition and Food Sciences, University of La Laguna, 38204-La Laguna, Tenerife, Spain.
authors.forename: J. E.
authors.initials: JE
authors.lastname: Conde
authors.forename: M.
authors.initials: M
authors.lastname: Sanz Alaejos