. 2017 Jan 27;7:41213. doi: 10.1038/srep41213

Table 1. Comparison of the analytical performances of GA-RGO/AuNPs modified electrode with previous reported AuNPs based DA sensor.

Modified electrode	Detection Method	LOD (μM)	Linear range (μM)	Sensitivity	Refs
GNF electrode	DPV	1.5	1.5–27.5	—	48
Nanostructured Au	Amperometry	0.026	0.2–600	0.178 μA μM⁻¹ cm⁻²	49
AuNPs/PANI	Amperometry	0.8	3–115	—	50
Au/PE/PS/BBD	CV	0.8	5–100	—	51
GO	DPV	0.27	1–15	—	52
Graphene/AuNPs	DPV	1.86	5–1000	510.2 μA mM⁻¹ cm⁻²	53
Pt@Au/MWNT	Amperometry	0.08	Up to 120	1.16 mA mM⁻¹ cm⁻²	54
Au nanowire	Amperometry	0.4	0.4–250	—	55
AuNPs/β-CD/GR	DPV	0.15	0.5–150	—	56
GO-WCNT/MnO₂/AuNP	Amperometry	0.17	0.5–2500	233.4 μA mM⁻¹ cm⁻²	57
Fe₃O₄@GNs/Nafion	DPV	0.007	0.02–130	—	58
AuNPs@PS/RGO	DPV	0.005	0.05–20	3.44 μA μM⁻¹	47
GA-RGO/AuNPs	DPV	0.0026	0.01–100.3	3.58 μA μM⁻¹ cm⁻²	This work