A biosensor based on graphite epoxy composite electrode for aspartame and ethanol detection

Ülkü Anik Kirgöz, Dilek Odaci, Suna Timur, Arben Merkoçi, Salvador Alegret, Nurgün Beşün, Azmi Telefoncu

Producción científica: Contribución a una revistaArtículoInvestigaciónrevisión exhaustiva

48 Citas (Scopus)

Resumen

A gelatin membrane with carboxyl esterase and alcohol oxidase was subsequently integrated onto the surface of a graphite epoxy composite electrode (GECE). The developed biosensors showed linearity in the range of 2.5-400 μM for aspartame and 2.5-25 μM for ethanol with response times of 170 and 70 s for each analyte, respectively. The resulting bienzyme biosensor was used for aspartame detection in diet coke samples and ethanol detection in beer and wine samples. From the obtained results, it can be concluded that the developed biosensor is a selective, practical and economic tool for aspartame and ethanol detection in real samples. © 2006 Elsevier B.V. All rights reserved.
Idioma originalInglés
Páginas (desde-hasta)165-169
PublicaciónAnalytica Chimica Acta
Volumen570
N.º2
DOI
EstadoPublicada - 16 jun 2006

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