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Updated: Jun 28, 2026

Accumulation and Analysis of Cuprous Ions in a Copper Sulfate Plating Solution
Published on: March 20, 2019
Fluorimetric determination of indole derivatives by fluorophore generation in copper(II)-sulphuric acid solution
F G Sanchez1, C C Ruiz, A H Bayona
1Department of Analytical Chemistry, Faculty of Sciences, University of Málaga, 29071 Málaga, Spain.
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.
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