A Molecularly Imprinted Electrochemical Gas Sensor to Sense Butylated Hydroxytoluene in Air

Table 1

Comparison of the Prussian blue sensors for sensing purposes [21].

Modified electrode	Range of detection	Limit of detection
Prussian blue	0.32–5.3 μM	0.018 μM
Copper-iron hexacyanoferrates	0.3–300 μM	0.05 μM
Graphene oxide/Prussian blue	0.02–0.2 mM	1.9 μM
Graphene oxide/Prussian blue	10–1440 μM	3 μM
Polyelectrolyte-functionalized ionic liquid decorated graphene sheets	5–60 μM	1 μM
Gold-Prussian blue-graphene	0.01–3.0 mM	1.5 μM
Prussian blue/reduced graphene oxide	0.5–400 μM	0.44 μM
Reduced graphene oxide/Prussian blue	0.8–500 μM	0.25 μM