Semi-differentiating circuit

The related circuit, shown in Fig. 35, performs semi-differentiation... 

That Is, the seml-differentlated current measures the differential change in suface concentration of the target species. Hence the semi differentiated voltammogram gives a much narrower pea for each system 100 mV) centred for a reversible system on the E of the substance. The actual operation of semi-differentiation can be achieved by a simple analogue circuit [21]. 

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