title: Fluorimetric determination of indole derivatives by fluorophore generation in copper(II)-sulphuric acid solution.
abstract: A spectrofluorimetric procedure for the determination of indole-3-acetic acid, indole-3-propanoic acid and indole-3-butyric acid by derivatization with copper sulphate-sulphuric acid solution has been developed. The optimum reaction conditions, the effect of interferents and the advantages associated with the use of first- and second-derivative synchronous spectrofluorimetry have been studied. The detection limits are 3, 12 and 6 ng/ml for indole-3-acetic, indole-3-propanoic and indole-3-butyric acid, respectively.
authors.affiliation: Department of Analytical Chemistry, Faculty of Sciences, University of Málaga, 29071 Málaga, Spain.
authors.forename: F G
authors.initials: FG
authors.lastname: Sanchez
authors.forename: C C
authors.initials: CC
authors.lastname: Ruiz
authors.forename: A H
authors.initials: AH
authors.lastname: Bayona