Fabrication modified electrochemical sensor to detect and measure phenols in oily waste water

In this research work, a layer involving gold nano particle, poly pyrole and syntheic ligand modified were electro deposited on the surface of gold bare electrode using cyclic voltametry technique. In this way, a modified electrode is made at room temperature for determination of phenol at pH= 9 fixed by Briton Robinson (B-R) buffer solution under the optimized chemical and instrumental parameters. The cyclic voltametry (CV), Square wave (SqW) and techniques were used to electrochemical study of modified electrode. The scanning electron microscopy (SEM) technique was used to morphological study of the electrode surface. This modified electrode responds to phenol over the concentration range of 0.5 to 100 nM. Other advantages of this modified electrode are high signal to noise ratio, wide dynamic range of response, high sensitivity and also responsibility toward phenol in its real samples without any side serious interferences.

کلیدواژه ها:

Electrochemistry ، Electroanalysis ، Sensor ، biosensor ، Nano materials ، Nano composites ، Phenol