julio 2013

NADH Electrocatalytic Oxidation on Gold Nanoparticle-Modified PVC/TTF-TCNQ Composite Electrode. Application as Amperometric Sensor

García-Pineda, I., Mayén, M., Rodríguez-Mellado, J.M., Rodríguez-Amaro, R.

Abstract

We herein report on the electrocatalytic activity towards the oxidation of NADH of a PVC/TTF-TCNQ composite electrode modified with gold nanoparticles. This electrocatalytic property allows proposing this system as a new alternative for amperometric determination of NADH, without need to add another mediator. The sensor shows a linear response to NADH over a concentration range from 5.0×10⁻⁶ M up to 5.0×10⁻⁴ M, with a sensitivity of 11.22±0.5 mA M⁻¹ and a detection limit (S/N=3) of 4.0×10⁻⁶ M for measurements in batch and similar data in FIA.

NADH Electrocatalytic Oxidation on Gold Nanoparticle-Modified PVC/TTF-TCNQ Composite Electrode. Application as Amperometric Sensor

Abstract

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