Production Of Working Electrodes Graphene Oxide For Phenol Analysis Voltammetrically

The working electrode in the voltammetry method is an electrode that responds to the current generated in a redox reaction. The working Electrode to response currents through the process of migration, convection and diffusion. Working electrodes can be made according to the needs for qualitative and quantitative analysis. Graphen oxide as working electrodes have been made, as phenol sensor samples, graphen oxide has been made by hammer methods. Graphen oxide working electrodes are characterized using IR, XRD, SEM. The copper wire cable as electrode body is made a 15 cm long 2mm diameter filled with 0.001mg graphen oxide which is then compacted until smooth. Graphene oxide electrodes have been used for the measurement of phenol by voltammetry compared to HPLC. Measurements applied to the concentration of 10 ppm phenol samples obtained by voltammetry recovery were obtained 97.4% and HPLC obtained 97.6%. Keywords—voltammetry, graphen oxide, phenol