The Study on Effect of Colour Electrolyte Reference Electrode

The function of the reference electrode is to complete the pH measurement circuit, in conjunction with pH sensor. This paper described the characterization of in-house Reference Electrode (RE) using green colour electrolyte as a medium. The in-house RE was tested with few subjects such as commercial RE, in-house Nitrate Sensor, and in-house pH sensor. The study is focusing on the effect and stability of colour electrolyte using in RE. The result shows In-house reference electrode with coloured electrolyte performed a very stable output. Total of 3 experiment done shows the RE are able to detect different pH (buffer solution) and provide a good slope R2near to 1. Furthermore, the field testing shows the colour electrolyte able to improve the voltage reading and minimize drift effect.