title: Selenium in environmental waters: Determination, speciation and concentration levels.
abstract: This article reviews the different methods used for the determination of selenium species in all types of environmental waters. Basic difficulties are discussed and the efficiency of the methods is explained in view of the sub-mug/1. concentration levels. Special attention is paid to preconcentration steps. Published data on speciation and concentration levels in various water samples are critically reviewed.
authors.affiliation: Department of Chemistry, University of Antwerp (U.I.A.), Universiteitsplein 1, B-2610 Wilrijk, Belgium.
authors.forename: H
authors.initials: H
authors.lastname: Robberecht
authors.forename: R
authors.initials: R
authors.lastname: Van Grieken