Fig. 3
From: Nanocarbon and nanodiamond for high performance phenolics sensing
HQ detection at nanocarbon-modified electrode. a CV at increasing concentration of HQ as indicated. b Square-wave voltammetric measurement of HQ at increasing concentrations, as indicated. c Amperometric detection of successive addition of HQ at indicated concentrations with applied potential of +0.2 V. Plot shows the first 600 s of the full experiment in the inset figure. d Results from amperometric experiments for four carbon-modified electrodes, i.e. GCE, nanodiamond-GCE, graphene-GCE and nanocarbon-GCE. The plot shows the current increase against added HQ concentration. Nanocarbon-GCE exhibits highest sensitivity, as indicated by the slope
