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A flow injection chemiluminescence method using Cr(III) as a catalyst for determining hydrogen peroxide. Application
R Escobar1, S García-Domínguez, A Guiraúm
1Department of Analytical Chemistry, University of Seville, Spain.
Abstract:
Flow injection analysis has been applied to the determination of hydrogen peroxide produced by some different species of microalgae. The method is based on the luminol-H(2)O(2) chemiluminescence reaction using Cr(III) as a catalyst. Optimum experimental conditions for the method have been studied and trace amounts of hydrogen peroxide determined with detection limits of 4 10(-8) mol/L. The method using Cr(III) was compared with that using horseradish peroxidase as the catalyst.