@article{article_926310, title={Electroanalysis of Pyrocatechol in River Water Over Pt Electrode Modified with Polyaniline-Poly 3-methylthiophene - Poly 3,3’-diaminobenzidine Film}, journal={Hacettepe Journal of Biology and Chemistry}, volume={44}, pages={339–347}, year={2016}, author={Ülker, Emine and Kavanoz, Muammer}, keywords={Polyaniline,pyrocatechol,poly 3-methylthiophene,poly 3,3’-diaminobenzidine}, abstract={Determination of pyrocatechol was successfully achieved over polyaniline - poly 3-methylthiophene - poly 3,3’-diaminobenzidine PANI - P3MT - PDAB coated Pt disc electrode using amperometric I-t method in NaHSO4/Na2SO4 SBS pH 2.0 solution. The potential range of 0.45 V-0.65 V were implemented and a potential of 0.50 V was found to be an optimum potential. Analytical parameters LOD, LOQ and linear range were 7.37×10-5, 2.47×10-4 and 2.47×10-4-25.0 mmol.L-1, respectively. Furthermore, assay of pyrocatechol was performed in artificially contaminated river water samples over modified electrode at the pyrocatechol concentrations of 5.0 and 10.0 mmol.L-1 to check on the matrices interference and accuracy of the developed method. Recovery values were 101.1% and 101.2%, respectively. Without matrix effect, determination of pyro- catechol at lower peak potential 0.50 V than oxidation peak potential 0.62 V was carried out.}, number={3}, publisher={Hacettepe University}