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

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

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

Determination of oxytetracycline in milk samples by polymer inclusion membrane separation coupled to...

Electrochemical and AFM characterization of the electropolimerization of pyrrole over a graphiteepox...

Potentiometric behavior of graphite-epoxy electrochemical transducers towards anions, cations and pH...

Mercury Ions Removal from Aqueous Solution Using an Activated Composite Membrane

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

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

Synthesis, characterization, and crystal structures of n-alkyldiorganodithiophosphates RS2P(OC6H4)2

High-performance liquid magneto-chromatography