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vol.54 número4INHIBITION OF CORROSION OF Α-BRASS (Cu-Zn, 67/33) IN HNO3 SOLUTIONS BY SOME ARYLAZO INDOLE DERIVATIVESSYNTHESIS OF A-RING-SUBSTITUTED 5,6,8,12B-TETRAHYDROISOINDOLO[1,2-A]ISOQUINOLIN-8-ONES índice de autoresíndice de materiabúsqueda de artículos
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Journal of the Chilean Chemical Society

versión On-line ISSN 0717-9707

Resumen

MATTOS, IVANILDO LUIZ DE; CAROLI, MARCOS; AREIAS, MADALENA  y  NAVARRO, MARCELO. A FAST, ROBUST ELECTROCHEMICAL METHOD FOR THE AUTOMATED DETERMINATION OF HYDROGEN PEROXIDE. J. Chil. Chem. Soc. [online]. 2009, vol.54, n.4, pp. 414-416. ISSN 0717-9707.  http://dx.doi.org/10.4067/S0717-97072009000400020.

A suitable fow-injection method for the analysis of commercial solutions of hydrogen peroxide is described. A Nafon-coated glassy carbon electrode, modifed by deposition of copper hexacyanoferrate (CuCHF), is employed as an amperometric sensor. The method allows the analysis of 45 samples per hour, with peroxide concentrations in the range of 1.25 -10.0 mM, with relative standard deviations smaller than 1%.

Palabras clave : Nafon-coated copper hexacyanoferrate modifed electrode; FIA system; Hydrogen peroxide quantifcation.

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