Fe(bpy)(3)(2+) (where bpy = 2,2' bipyridyl) immobilized Nafion (Nf) modified glassy carbon electrodes were prepared and they showed excellent electrocatalytic oxidation of nitrite (NO(2)(-)) which leads to the sensitive determination of NO(2)(-). Electrostatic repulsion between NO(2)(-) and Nf film is greatly decreased when Nf film is fully exchanged with cations.
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Article Synopsis
- * The study compared these electrodes to traditional Ag/AgCl reference electrodes, finding that while Ag/AgCl showed greater charge transfer resistance, the carbon/graphene electrodes maintained comparable sensitivity and performance when lactate oxidase was used in the setup.
- * Future investigations are necessary to address the reduction in electric current observed with human plasma, indicating potential issues with analyte detection sensitivity due to biological interferents.
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