title: Fluorimetric determination of gallium in a nickel alloy and aluminium with N-oxalylamine(salicylaldehyde hydrazone).
abstract: A fluorimetric determination of gallium, based on the formation of the fluorescent chelate with N-oxalylamine(salicylaldehyde hydrazone) (OSH)-Ga(III), is proposed. The complex has excitation and emission maxima at 395 and 475 nm, respectively. The detection limit is 3 ng/ml and Ga can be determined up to 277 ng/ml. The method has been applied to the determination of gallium in a nickel alloy and aluminium. Extraction with n-butyl acetate from 6M hydrochloric acid medium has been used to separate Ga from the interfering elements in the alloys.
authors.affiliation: Department of Analytical Chemistry, Faculty of Chemistry, University of Seville, 41012-Seville, Spain.
authors.forename: F
authors.initials: F
authors.lastname: de Pablos
authors.forename: G
authors.initials: G
authors.lastname: Galan
authors.forename: J G
authors.initials: JG
authors.lastname: Ariza