Electrocatalytic Oxidation of Tryptophan at Gold Nanoparticle-Modified Carbon Ionic Liquid Electrode

Electrocatalytic Oxidation of Tryptophan at Gold Nanoparticle-Modified Carbon Ionic Liquid Electrode

The electrochemical behavior of tryptophan was studied at the carbon ionic liquid electrode (CILE) modified with gold nanoparticle (GNP). This electrode has a stable and excellent response toward tryptophan. Under optimum experimental conditions, the calibration curve was linear in the tryptophan co...

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Veröffentlicht in:Electroanalysis (New York, N.Y.) N.Y.), 2010-12, Vol.22 (23), p.2848-2855
Hauptverfasser: Safavi , A., Momeni, S.
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Sprache:eng
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Carbon
Carbon ionic liquid electrode
Electrodes
Gold
Gold nanoparticles
Ionic liquids
Nanocomposites
Nanomaterials
Nanostructure
Sensors
Tryptophan
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Momeni, S.
description The electrochemical behavior of tryptophan was studied at the carbon ionic liquid electrode (CILE) modified with gold nanoparticle (GNP). This electrode has a stable and excellent response toward tryptophan. Under optimum experimental conditions, the calibration curve was linear in the tryptophan concentration range of 5 to 900 µM with an excellent correlation coefficient (0.995). The experimental limit of detection was 4 µM. Contrary to many other electrodes, the oxidation of tryptophan on GNP/CILE does not result in electrode fouling. GNP/CILE has been effectively applied to the determination of tryptophan in composite amino acid injection.
doi_str_mv 10.1002/elan.201000279
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subjects Carbon
Carbon ionic liquid electrode
Electrodes
Gold
Gold nanoparticles
Ionic liquids
Nanocomposites
Nanomaterials
Nanostructure
Sensors
Tryptophan
title Electrocatalytic Oxidation of Tryptophan at Gold Nanoparticle-Modified Carbon Ionic Liquid Electrode
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