Electrochemical sensors for sulfur- and lead-containing gases

The possibility of using solid-electrolyte transducers with nonstoichiometric electrodes was studied, and the effect of the material and nonstoichiometry of lead monochalkogenides as measurement electrodes on the work of transducers was considered. The reliability of the results obtained was substantiated by comparing the calculated thermodynamic properties of the measurement electrodes with the corresponding reference values. The effect of nonstoichiometry was assessed from coulometric titration curves. It was noticed that the defect type affects the sensitivity of the transducer. The effect of the surface of the measurement electrode on the process of gas analysis was assessed. The applicability region for the transducers under study was indicated.Translated from Zhurnal Analiticheskoi Khimii, Vol. 60, No. 2, 2005, pp. 193–197.Original Russian Text Copyright © 2005 by Leushina, Makhanova.Presented at the International Forum Analytics and Analysts, Voronezh, 2003.This revised version was published online in April 2005 with corrections to the author names and book review format.