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Design of an electrochemical polypyrrole-imprinted polymer for bisphenol A detection in aqueous media

H. E. El Yamine Sakhraoui, N. Maouche, S. Khaoulani, G. Attia, C. Zerrouki, N. Fourati
  • Abstract:
    This study concerns the design of an electrochemical sensor functionalized with a polypyrrole-molecularly imprinted polymer (PPy- MIP) for bisphenol A (BPA) detection. Here, N, N'- methylene-bis-acrylamide was chosen as the chelating agent due to its accessible carbonyl and amine groups. Extraction of BPA templates from the vicinity of the PPy-polymeric matrix was optimized by electrochemistry and Fourier Transform Infrared spectroscopy (FTIR). The limit of detection of the designed sensor was of order of 1 nM and the sensitivity was equal to (9.66 ± 0.86) µA/M respectively. The dissociation constant Kd, which provides information on the affinity between the templates and the cavities, was estimated from a combined one-site binding - Hill model. Kd was of order of (2.05 ± 0.18) 10-9 M.
  • Keywords:
    Bisphenol A; Polypyrrole; Molecularly imprinted polymer; Electrochemical sensor; FTIR characterization
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  • DOI:
    tc19-2022.16

Event details:

  • IMEKO TC:
    TC19
  • Event name:
    TC19 Symposium: Metrology on Environmental Instrumentation and Measurements (EnvIMEKO 2022)
  • Title:

    9th EnvIMEKO Symposium of Environmental Instrumentation and Measurements

  • Place:
    La Mans, FRANCE
  • Time:
    02 June 2022 - 03 June 2022