Selective Electrochemical Determination of Etoposide Using a Molecularly Imprinted Overoxidized Polypyrrole Coated Glassy Carbon Electrode

Figure 2

(a) The effect of pH of Britton-Robinson buffer solution; (b) pyrrole concentration; (c) ETP concentration; and (d) the number of cycles on MIP and NIP GCE sensitivity. The electroanalytical signal was measured through DPV response to 5.0×10⁻⁶ M ETP in BRB solution (pH 4.0). Error bars represent the standard deviation of three independent measurements.

(a)

(b)

(c)

(d)