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

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

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

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

Efecto de la composición del soporte sobre las estructuras superficiales de óxidos de níquel y molib...

Mercury Ions Removal from Aqueous Solution Using an Activated Composite Membrane

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

Synthesis, Characterization and Catalytic Activity of Supported NiMo Catalysts

Nucleation and growth of cobalt onto different substrates: Part I. Underpotential deposition onto a ...

Theoretical and Experimental Study of Cobalt Nucleation and Growth onto Gold Substrate with Differen...

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