Producción Científica Profesorado

Optimization of a Differential Pulse Voltammetric Methodology for the Quantification of Diclofenac Using Paste Electrodes and Carbon Nanotubes



Galan Vidal, Carlos Andres

2017

M. Franco Guzmán, G. A. Álvarez Romero, L. H. Mendoza Huizar, C. A. Galán Vidal, G. Roa Morales, M. T. Ramírez Silva, M. G. Montes de Oca Yemh, ECS Trans., 2017, 76(1), 9-18.doi: 10.1149/07601.0009ecst


Abstract


In this work we present the development of an optimizedmethodology based on differential pulse voltammetry fordiclofenac quantification, using electrochemically activated carbonpaste electrodes and multi-walled nanotubes carbon pasteelectrodes. Under the optimized experimental conditions,diclofenac presented linear response over the range of 10-10 to 10-4M for both electrodes. The lower detection limits found were 0.001and 0.29 ?M for the paste electrodes with and without nanotubesrespectively. The effect of common interferences on diclofenaccurrent response was investigated. Finally the proposedmethodology was validated comparing the results obtainedmeasuring the concentration of diclofenac in pharmaceuticalsamples with those obtained with the reference methodology.



Producto de Investigación




Artículos relacionados

Zinc Electrodeposition from Chloride Solutions onto Glassy Carbon Electrode

Kinetics of Polypyrrole Films Doped with Sulphate Ions Electrodeposited Over Graphite - Epoxy Resin ...

Hydrogen bond studies in substituted N-(2-hydroxyphenyl)--2-[(4-methylbenzenesulfonyl)amino]acetamid...

Cobalt electrodeposition onto highly oriented pyrolytic graphite (HOPG) electrode from ammonium sulf...

Effect of TiO2-Al2O3 sol-gel supports on the superficial Ni and Mo species in oxidized and sulfided ...

Do Spiroarsoranes Exhibit Polytopal Equilibrium in Solution?

Análisis del Comportamiento Presión-Temperatura en la Transición Isotrópico-Nemático del p-Azoxianis...

A Voltammetric Study Of The Underpotential Deposition Of Cobalt Onto A Glassy Carbon Electrode

Nucleation and Growth Kinetics of Electrodeposited Sulfate-Doped Polypyrrole: Determination of the D...

Quantum chemical study of the electrochemical reduction of the [Co(H2O)6]2+ and [Co(NH3)5(H2O)]2+ io...