Table 1. Comparison of the Analytical Performance from the Proposed Hydrazine Sensor with Previous Sensors.

technique	electrode	linear range (μM)	LOD (μM)	sensitivity (μA mM–1)	references
CV	MWCNTa@CADEb/GCE	0–1000	8.8	21.1	(62)
LSV	Ag-Ni/rG/GCE	1–1050	0.3	28.4	(70)
DPV	TiO2/PANIc/AuNPs/GCE	0.9–1200	0.1	11.6	(71)
amperometric	MSRGd/Au/GCE	2–30; 30–1500	0.5	32.1; 18.8	(72)
amperometric	ZIF-8e-ErGO/GCE	0.1–260; 260–1160	0.032	145.7; 31.5	(73)
DPV	Fe-rGO/Mn-Spinel/GCE	0.045–105; 106–653	0.0085	19.3; 20.3	(74)
LSV	AuNP/MnOx-VOxf/ERGO/GCE	30–1000	3.0	150	(75)
DPV	ErGO/PEDOT:PSS/GCE	0.2–1; 1–100	0.01	196.7; 24.7	this work

^aMultiwalled carbon nanotubes.

^bCA derived from demethylation of 2-methoxyphenol.

^cPolyaniline.

^dMoS₂-reduced graphene.

^eZeolitic imidazolate framework-8.

^fMultivalent metal oxide.