Electrooxidation of free sulfite by an integrated system of glassy carbon modified electrodes with nickel phthalocyanines and membrane absorber in red wine

Roxana Arce, María J. Aguirre, Julio Romero

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

6 Citas (Scopus)

Resumen

At basic pH values, the integrated system modified electrode / membrane absorber, it is possible to obtain a sensor of sulfite in actual red wine samples. This quantification method consumes small amounts of sample, it is fast and shows good linearity with r2 of 0.998 and good accuracy. This integrated approach can separate free sulfite red wine matrix with the absorption system of the membrane and, moreover, can be quantified using the electrochemical sensor using NiTSPc modified electrodes, obtaining a concentration of sulfite free 29.8 ± 0.2 mg·L-1.

Idioma originalInglés
Páginas (desde-hasta)7916-7924
Número de páginas9
PublicaciónInternational Journal of Electrochemical Science
Volumen9
N.º12
EstadoPublicada - 1 ene 2014

Áreas temáticas de ASJC Scopus

  • Electroquímica

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