title: Determination of trace aluminum by fluorescence quenching with m-carboxyphenylfluorone as analytical reagent.
abstract: An improved method for the fluorophotometric determination of trace Al(III) has been developed. This method involves a fluorescence quenching reaction that results in the formation of an m-carboxyphenylfluorone-Al(III) complex in a poly(N-vinylpyrrolidone) micellar medium. The calibration curve was found to be linear in the range of 0.03-1.50 µg dm(-3). We successfully applied the proposed method to an assay of Al(III) in canned beverages, which required only sample dilution and no sample pretreatment. The proposed method is expected to determine Al(III) in a simple and rapid manner.
authors.affiliation: Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan.
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Hoshino
authors.forename: Shinichiro
authors.initials: S
authors.lastname: Kamino
authors.forename: Shingo
authors.initials: S
authors.lastname: Takada
authors.forename: Megumi
authors.initials: M
authors.lastname: Ijyuin
authors.forename: Maki
authors.initials: M
authors.lastname: Nakanishi
authors.forename: Masahito
authors.initials: M
authors.lastname: Naito
authors.forename: Mamiko
authors.initials: M
authors.lastname: Asano
authors.forename: Takako
authors.initials: T
authors.lastname: Yamaguchi
authors.forename: Yoshikazu
authors.initials: Y
authors.lastname: Fujita
mesh_terms: D000535:Aluminum / Q000032:analysis*; D001628:Beverages / Q000032:analysis*; D005452:Fluoresceins / Q000737:chemistry*; D005453:Fluorescence; D008823:Micelles
chemical_list: C442461:4-carboxyphenylfluorone; D005452:Fluoresceins; D008823:Micelles; D000535:Aluminum