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

Mercury Ions Removal from Aqueous Solution Using an Activated Composite Membrane

Characterization of Main Anthocyanins Extracted from Pericarp Blue Corn by MALDI-ToF MS

Construction and Evaluation of a Gold Tubular Electrode for Flow Analysis: Application to Speciation...

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

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

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

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

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

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

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