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

Table 1

A comparison of the reported electrochemical sensors for hydroquinone.

Electrode	Technique	Linear range (μM)	Lod (μM)	Ref.
Zn@ZnO	Cyclic voltammetry	10–90	0.10443	[27]
Nano-co/poly-L-glu	Cyclic voltammetry	3.58–130	0.497	[21]
Polypyrrole/carbon black/ZnO	Amp	0.9–6.5	0.0229	[40]
AuNPs/EGP	DPV	0.07–100	0.0273	[41]
TiO2–ZnO-rGO	DPV	0.1–500	0.031	[42]
Cu/RGO	DPV	0.05–86.5	0.02	This work