Characterisation of the equivalent circuit with Zimmer&Peacock validation sensors!

Zimmer&Peacock received an enquiry from a client to evaluate the Electrochemical Impedance response from AnaPot EIS connected to an equivalent sensor that was representative of their assay.


The equivalent circuit in consideration is R1(C1(R2C2)) in which the solution resistance R1 is in series with two parallel branches: one is just membrane capacitance, the other one is series R2, C2 circuit.


Zimmer and Peacock constructed a validation sensor with the electrical components similar in value to this specified by the client; we thene tested the validation sensor on the Ana Pot EIS by scanning from 100 mHz to 1 MHz, and collecting approximately 20 to 30 frequency points for evaluation. The results are shown in the adjacent image, 2017