Figure 4

(A) Cyclic voltammograms and (B) differential pulse voltammetry (DPV) curves of the bare SPE, NS/SPE and NS/AgNP/SPE towards a 50 μM solution of scopoletin.
(A) Cyclic voltammograms and (B) differential pulse voltammetry (DPV) curves of the bare SPE, NS/SPE and NS/AgNP/SPE towards a 50 μM solution of scopoletin.