title: European analytical column No. 32 (January 2004).
authors.affiliation: Department of Analytical Chemistry, "Marie Curie" Annex Building, Campus de Rabanales, University of Córdoba, 14071, Córdoba, Spain.
authors.forename: Miguel
authors.initials: M
authors.lastname: Valcárcel
authors.forename: Ernst-Heiner
authors.initials: EH
authors.lastname: Korte