title: Determination of Mo(VI) in tap-water and sea-water by differential-pulse polarography and co-flotation.
abstract: A new method is described for the microdetermination of Mo(VI) in natural waters and sea-water by differential-pulse polarography based on the catalytic wave caused by Mo(VI) in nitrate medium following preconcentration by co-flotation on Fe(III) hydroxide. In the case of sea-water samples, hexadecyltrimethylammonium bromide (HTAB) was used together with octadecylamine as the surfactant. For the analysis of natural water samples only HTAB is needed. Molybdenum in the range 0.7-5.7 ng/ml has been determined.
authors.affiliation: Department of Analytical Chemistry, Faculty of Sciences, University of Cádiz, Spain.
authors.forename: J L
authors.initials: JL
authors.lastname: Hidalgo
authors.forename: M A
authors.initials: MA
authors.lastname: Gomez
authors.forename: M
authors.initials: M
authors.lastname: Caballero
authors.forename: R
authors.initials: R
authors.lastname: Cela
authors.forename: J A
authors.initials: JA
authors.lastname: Perez-Bustamante