par Tarsiche, Irina;Ciurchea, Decebal ;Madau, Patrizio ;Olenic, Liliana
Référence Laboratory robotics and automation, 11, 4, page (224-228)
Publication Publié, 1999
Article révisé par les pairs
Résumé : Dynamic responses of self-made potentiometric NH3, CO2, and SO2 sensitive gas sensors are followed in the 10-5-5×10-3 M concentration range. By least squares fitting of potential versus time curves, Dk product values at the diffusion of NH3, CO2, and SO2 through microporous Teflon are calculated. The obtained results are fairly reflected by the behavior of the sensor. Measurements of potential versus time in mixed solutions of CO2 and SO2 with the CO2 sensitive sensor indicate the presence of the interferent.