Electroconductivity and Electrode Properties of Amorphous PbS–Ag2S–As2S3 and PbS–AgI–As2S3 Films Deposited from Solutions of Glass in n-Butylamine

Abstract

The parameters of the specific electroconductivity and electrode properties of massive glass and amorphous films of PbS–AgI–As₂S₃ and PbS–Ag₂S–As₂S₃ are studied. It is established that the lower detection limit of Pb²⁺ cations is 10^–7 mol/L for most of the studied membranes, while the Nernst region of the electrode function is 10^–6–10^–1 mol/L. The response time of the best film membranes Pb-ISE is 30–40 s in diluted solutions and 5–10 s in 0.01–0.1 M stirred solutions of Pb(NO₃)₂.