Abstract
The electrochemical behavior of polythionine on different electrodes has been investigated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Polymeric films were obtained by two electropolymerization methods: M1 using cyclic voltammetry or M2 in two steps, a constant potential oxidation and cycle potential sweeps. Those methodologies were compared by analyzing the electrochemical behavior of the films using two redox probes. The modified surfaces were also analyzed as electroanalytical sensors so phenol response was tested and a simple and reliable method for phenol quantification was proposed and validated, corresponding to an M2 glassy carbon modified electrode, using a 0.7V working potential with a 4×10−6 to 2.7×10−5M linear range, with those conditions a 3.6×10−6molL−1 LOD, 1.09×10−5molL−1 LOQ and a (2.9±0.2)×107CPhenol (molL−1) sensitivity are obtained.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
