title: FIA-fluorimetric determination of thiamine.
abstract: A flow injection-fluorimetric determination of thiamine is reported. The procedure is based on the oxidation of the analyte with potassium hexacyanoferrate(III) immobilized on an anionic exchange resin; the fluorescence is monitored in aqueous basic solution. Concentrations of the vitamin of 0.1-4 ppm have been determined; the relative standard deviation was 1.8%. The injection rate was 28 samples/h. The influence of other substances and the determination of the drug in a pharmaceutical formulation are also reported.
authors.affiliation: Departamento de Quimica Analitica, Universidad de Valencia, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Martinez Calatayud
authors.forename: C
authors.initials: C
authors.lastname: Gomez Benito
authors.forename: D
authors.initials: D
authors.lastname: gaspar Gimenez
mesh_terms: D005470:Fluorometry; D007202:Indicators and Reagents; D010084:Oxidation-Reduction; D012116:Resins, Plant; D013831:Thiamine / Q000032:analysis*
chemical_list: D007202:Indicators and Reagents; D012116:Resins, Plant; D013831:Thiamine