The responses of all-solid-state potentiometric chloride sensors with
an internal poly(pyrrole) contact and a plastic membrane with methyltr
idodecylammonium chloride were investigated. The influence of the poly
(pyrrole) doping anion was studied. Chloride-selective electrodes with
a poly(pyrrole) solid contact were characterized by good stability. T
he selectivity coefficients for this electrode are slightly better tha
n for the internal solution electrode.