Producción Científica Profesorado

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



Alvarez Romero, Giaan Arturo

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

Magnetic solid phase extraction based on phenyl silica adsorbent for the determination of tetracycli...

Potentiometric Behavior of Diverse Polypyrrole-sulphate Films Electro Synthesized on Graphite - Epox...

Determination of glucose by flow injection analysis with amperometric detection at Fe(III)-(tris(3,5...

Simultaneous determination of tetracyclines in poultry muscle by capillary zone electrophoresis

Development of a novel composite sensor based on doped pyrrole selective to nitrate ions

Chemical studies of anthocyanins: A review

Development of a Chloride Ion-Selective Solid State Sensor Based on Doped Polypyrrole-Graphite-Epoxy...

Sequential Injection Spectrophotometric Determination of Diclofenac in Urine and Pharmaceutical Form...

Synthesis and crystal structures of cis-palladium(II) and cis-platinum(II) complexes containing dipy...

cis-Palladium(II) complexes of derivatives of di-(2-pyridyl)methane: Study of the influence of the b...