Voltammetric investigation of catechol and hydroquinone at triton X-100 modified carbon paste electrode

A non-ionic surfactant triton x-100 (tx-100) modified carbon paste electrode (tx-100/cpe) was fabricated for the electrocatalytic oxidation of catechol (cc) and hydroquinone (hq) by cyclic voltammetric (cv) technique. the study of concentration variation for both cc and hq was conducted; the lower limit of detection was calculated to be 0.59 μm and 0.56 μm for cc and hq by cv technique. the fabricated tx-100/cpe was achieved the voltammetric separation of cc and hq in a mixture by cv and differential pulse voltammetric (dpv) techniques. the effect of scan rate on the binary mixture of cc and hq was examined; results suggest the electrode process was controlled by the adsorption phenomenon. the elimination of the fouling effect by the oxidised product was achieved by the tx-100/cpe. © 2016 by cee (center of excellence in electrochemistry).