Mixed dopant conducting polyaniline reusable blend for the detection of aqueous ammonia

The present paper reports about the conducting polyaniline-poly(acrylonitrile–butadiene–styrene) blend films as a sensor material for aqueous ammonia. The change in resistance value of these blend films on exposure to different concentrations of aqueous ammonia shows its utility as a sensor material. The conducting blend films on exposure to 10−4, 10−5 and 10−6N aqueous ammonia show a well-defined response behaviour and this aspect has been utilized in designing the ammonia sensor.