Producción Científica Profesorado

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



Páez Hernández, María Elena

2010

Álvarez-Romero, G.A., Ramírez-Silva, M.T.,Galán-Vidal, C.A., Páez-Hernández, M.E., Romero-Romo, M.A. Development of a Chloride Ion-Selective Solid State Sensor Based on Doped Polypyrrole-Graphite-Epoxy Composite. Electroanalysis, 22:14 (2010), 16501654. DOI: 10.1002/elan.200900601


Abstract


This paper reports the development and characterization of a solid state potentiometric sensor for chloride ions, based on doped polypyrrole-graphite-epoxy composite. The optimum mixture proportion found for polypyrrole:graphite was 60?:?40 meanwhile a 50?:?50 proportion was used for the polypyrrol+graphite:epoxy mixture. The stabilization time was approximately 16?min, while the response times varied within 2 and 23?s. The sensor displayed a sensitivity of 58?mV/decade [Cl?], and 3×10?6?M detection limit. The selectivity coefficients showed a greater selectivity to that reported for commercial-type sensors. The statistical analysis for chlorides' determination in commercial saline serums did not show significant differences respect to data reported by the manufacturers.



Producto de Investigación




Artículos relacionados

Facilitated transport of Hg(II) through novel activated composite membranes

Magnetic solids in analytical chemistry: A review

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

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

Multicommutated Anodic Stripping Voltammetry at Tubular Bismuth Film Electrode for Lead Determinatio...

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

Development of a Polypyrrole Selective Membrane For The Potentiometric Quantification of Saccharinat...

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

Metal content evaluation and its effect on the stability of anthocyanins

Silver and Silver Chloride Electrodeposits, an Alternative in the Construction of Ag/AgCl Solid Elec...