“…The resultant technique of oscilloscopic square wave polarography (3, 4) has achieved only moderate success, and the detection limits obtained were only about those of dc polarography, because of interference from the double layer current resulting from the rapid dc ramp. Mann (5,6) has demonstrated the utility of a staircase potential sweep function in the reduction of double layer current in linear sweep voltammetry. This discontinuous sweep function allowed rapid sweep rates while maintaining the current waveforms of linear sweep voltammetry.…”