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Journal of Analytical Science and Technology
Fig. 5 | Journal of Analytical Science and Technology

Fig. 5

From: A simple one-step electrochemical deposition of bioinspired nanocomposite for the non-enzymatic detection of dopamine

Fig. 5

A CVs of a GCE/PPy, b GCE/ErGO/PPy, and c GCE/ErGO/MWCNTs/PPy in 0.1 M PBS (pH 7.0) containing 50 μM DA at a scan rate of 50 mVs− 1. Inset: CV curves of GCE/ErGO/MWCNTs/PPy in the absence (a) and presence (b) of 50 μM DA. B Amperometric response of a GCE/PPy, b GCE/ErGO/PPy, and c GCE/ErGO/MWCNTs/PPy in 0.1 M PBS pH (7.0) containing 250 nM DA. C Amperometric response of GCE/ErGO/MWCNTs/PPy at 0.25 V in 0.1 M PBS pH (7.0) with successive addition of DA. Inset: Calibration curve for the DA sensor. D Amperometric response of GCE/ErGO/MWCNTs/PPy for the addition of DA, AA, UA, NEP, and EP in 0.1 M PBS pH (7.0)

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