title: Ion-exchange separation and spectrophotometric determination of vanadium in environmental samples.
abstract: A selective and sensitive method for the extraction and spectrophotometric determination of vanadium(V) in microgram quantities is described. The molar absorptivity of the yellow vanadium(V)-caffeic acid-Aliquat 336 extract is 1.3 x 10(4) 1.mole(-1).cm(-1) at 370nm. The method is compared with the atomic-absorption spectrometric method and applied to the trace determination of vanadium in steel, alloys, a rock and environmental samples.
authors.affiliation: Department of Chemistry, University School of Sciences, Gujarat University, Ahmedabad-380 009, India.
authors.forename: N
authors.initials: N
authors.lastname: Shah
authors.forename: M N
authors.initials: MN
authors.lastname: Desai
authors.forename: S K
authors.initials: SK
authors.lastname: Menon
authors.forename: Y K
authors.initials: YK
authors.lastname: Agrawal