DPV profiles of E-rGO and the plot of DPV peak as function of DA concentration. (A) DPV profiles of E-rGO in the solution of 0.01 M PBS (pH 7.4) containing 1 mM AA, 0.1 mM UA, and different concentration of DA (from 0 to 50 μM). (B) The plot of DPV peak current as function of DA concentration.
Wang et al. Nanoscale Research Letters 2012 7:161 doi:10.1186/1556-276X-7-161