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

Evaluación del contenido de metales y su efecto en la estabilidad de antocianinas

Presence and antimicrobial resistance of Escherichia coli isolated from foodstuffs in Hidalgo State ...

Potentiometric Behavior of Diverse Polypyrrolesulphate Films Electro Synthesized on Graphite Epoxy ...

Potentiometric quantification of saccharin by using a selective membrane formed by pyrrole electropo...

Renewable stationary phase liquid magnetochromatography: determining aspartame and its hydrolysis pr...

Development of a novel nitrate-selective composite sensor based on doped polypyrrole

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

Determination of tetracyclines in milk samples by magnetic solid phase extraction flow injection ana...

Potentiometric quantification of saccharin by using a selective membrane formed by pyrrole electropo...

Determination of non-steroidal anti-inflammatory drugs in wastewaters by magnetic matrix solid phase...