Producción Científica Profesorado

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



Alvarez Romero, Giaan Arturo

2010

Álvarez-Romero G. A., Ramírez-Silva M. T., Galán-Vidal C. A., Páez-Hernández M. E., Romero-Romo M., Development of a Chloride Ion-Selective Solid State Sensor Based on Doped Polypyrrole-Graphite-Epoxy Composite, Electroanalysis, 2010, Vol. 22, Núm 14, ISSN 1040-0397


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

Simultaneous determination of tetracyclines in poultry muscle by capillary zone electrophoresis

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

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

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

Magnetic solids in analytical chemistry: A review

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

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

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

Metal content evaluation and its effect on the stability of anthocyanins