Amperometric biosensor for the determination of histamine in fish samples

Producció científica: Contribució a una revistaArticleRecercaAvaluat per experts

74 Cites (Scopus)


A bienzymatic biosensor employing diamine oxidase (DOx) and horseradish peroxidase (HRP) for the detection of histamine in fish samples has been developed and optimized in this work. These enzymes have been co-immobilized into a polysulfone/carbon nanotubes/ferrocene membrane by means of phase inversion technique onto screen-printed electrodes. The electrochemical measurements have been carried out in phosphate buffer solution at pH 8.0 in batch mode and low applied potential (-50 mV vs. Ag/AgCl, KCl 0.1 M) to minimize the interferences. Developed biosensor exhibits high sensitivity (1.9 × 107 nA-1), low limit of detection (1.7 × 10 -7 M), high storage stability and excellent reproducibility, obtaining a linear interval range from 3 × 10-7 to 2 × 10-5 M. Finally, applicability of the biosensor to the estimation of histamine content in different fish samples has been assessed; obtaining a good correlation between results obtained with the biosensor and those obtained with the reference method (ELISA) in case of sardines, mackerel and greater weever. © 2013 Elsevier Ltd. All rights reserved.
Idioma originalEnglish
Pàgines (de-a)4066-4072
RevistaFood Chemistry
Estat de la publicacióPublicada - 1 de gen. 2013


Navegar pels temes de recerca de 'Amperometric biosensor for the determination of histamine in fish samples'. Junts formen un fingerprint únic.

Com citar-ho