Cobalt Hexacyanoferrate-Decorated Titania Nanotube: CoHCF@TNT Modified GCE as an Electron Transfer Mediator for the Determination of Hydrazine in Water Samples

Table 1

A comparison of electrocatalytic detection of hydrazine using various types of modified electrode systems.

S. numbers	Electrode system	pH	Potential	Concentration ranges	Reference
(1)	CeHCF/mesoporous carbon	1.5	+0.34 V versus Ag/AgCl (satd KCl)	1–163 μM	[14]
(2)	Ni(II)-bicalein complex/MWCNT	13	+0.65 V versus Ag/AgCl (satd KCl)	2.5 μM to 0.2 mM	[21]
(3)	Pd/boron-doped diamond	7	+0.11 V versus Ag/AgCl (satd KCl)	10 mM to 102 mM.	[20]
(4)	Pd/CNT	1	0.27 versus Ag/AgCl (satd KCl)	2.5–700 μM	[33]
(5)	CoHCF@TNT	6.9	+0.50 V versus Ag wire	0.5–2.5 mM	Present work