A tubular solid-state lead(II)-selective electrode was prepared and constructed as a compact tubular sensor (volume 8.8 μl) from a lead tube and Tygon tubing. The lead/ lead sulphide membrane was activated by anodic deposition and conditioned in lead nitrate medium at pH 3. The incorporation, behaviour and suitability of the coated tubular electrode into the conduits of a continuous flow system and a flow-injection system was evaluated and is described. The performance of the tubular lead sensor in the FIA system is satisfactory. With 30-μl samples injected into the FIA system, the flow-through electrode responded quite well for lead(II) concentrations of 250 mg/l upwards at a sample rate of about 40 per hour. Interferences in aqueous solutions are described.