Producción Científica Profesorado

Measuring system for amperometric chemical sensors using the three-electrode technique for field application



Galan Vidal, Carlos Andres

2003

P. R. Hernández, C. A. Galán, A. Morales, S. Alegret. Measuring system for amperometric chemical sensores using the three-electrode technique for field application. Journal of Applied Research and Technology 1 (2003) 107-113. ISSN: 1665-6423


Abstract


A portable and low cost measuring system for amperometric chemical sensors using the three-electrode technique was developed. This technique allows chemical sensors to work with currents higher than ten microamperes. The system was based on a potentiostat operation, completed with an I-V converter and signal conditioning circuits. The instrument was evaluated comparing calibration curves of hydrogen peroxide, proving several amperometric chemical sensors and biosensors, to those obtained from a very expensive commercial equipment. Good linearity and sensibility as well as low noise measurements were obtained. Moreover, because the reduced size and low cost, the instrument allows to be used directly in field applications.






Artículos relacionados

Kinetics of Polypyrrole Films Doped with Sulphate Ions Electrodeposited Over Graphite - Epoxy Resin ...

Predicting the Phase Diagram of a Liquid Crystal Using the Convex Peg Model and the Semiempirical PM...

Evaluación de Esteroides Aromáticos como Indicadores de Madurez Térmica en Extractos de Roca

A Semiempirical PM6 Study of Some Aminopyrimidine Derivatives and their Interaction with an Iron Sur...

ELECTROCHEMICAL STUDY ABOUT ZINC ELECTRODEPOSITION ONTO GCE AND HOPG SUBSTRATES

Cobalt electrodeposition on polycrystalline palladium. Influence of temperature on kinetic parameter...

Hydrogen bond studies in substituted N-(2-hydroxyphenyl)--2-[(4-methylbenzenesulfonyl)amino]acetamid...

Analysis of the experimental pressuretemperature behavior in the isotropicnematic phase transition f...

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

Magnetic transition phase diagram of cobalt clusters electrodeposited on HOPG: Experimental and micr...