Abstract

The electrochemical behavior of bisphenol A (BPA) was studied on poly(3,4-ethylenedioxythiophene) (PEDOT)-modified glassy carbon electrodes by cyclic voltammetry. It was observed that BPA oxidation on PEDOT film produced a BPA polymer (pBPA) showing excellent redox activity with anodic and cathodic peaks at 0.15 and 0.01 V, respectively; the former being evaluated for BPA electrochemical sensing. The amount of deposited pBPA has been estimated by electrochemical and spectroscopic analysis by X-ray photoelectron spectroscopy. The effect of scan rate and pH on the oxidation of pBPA film has been studied. The oxidation current was found to vary linearly with BPA concentration in the range 90–410 μM, and a detection limit of 55 μM was evaluated. Results of BPA amperometric detection have also been collected by using a repetitive potential step program to give a linear response to BPA in the concentration range 40–410 μM with a detection limit of 22 μM and a sensitivity of 1.57 μAμM−1cm−2. The developed sensor showed satisfactory reproducibility and anti-interference properties and was successfully applied to BPA determination in mineral water samples.

Autore Pugliese

• Malitesta Cosimino , Mazzotta Elisabetta

Tutti gli autori

• E. Mazzotta , C. Malitesta , E. Margapoti

Titolo volume/Rivista

ANALYTICAL AND BIOANALYTICAL CHEMISTRY

Anno di pubblicazione

2013

ISSN

1618-2642

ISBN

Non Disponibile

Numero di citazioni Wos

33

Ultimo Aggiornamento Citazioni

27/04/2018

Numero di citazioni Scopus

35

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile