Research Article

Facile Synthesis of Copper-Coated-Reduced-Graphene-Oxide and Its Application as a Highly Sensitive Electrochemical Sensor for Hydroquinone

Figure 7

(a) The relationship between pH and the peak potentials. (b) The relationship between pH and the peak currents of HQ (5.0 μM HQ at 120 mV·s−1 scanning rate).
(a)
(b)