Abstract:This work presents a study of self‐assembled platforms of polyelectrolytes constructed by drop casting on screen‐printed electrodes for lead (II) sensing. Infrared characterization by attenuated total reflection (ATR) and electrochemical impedance spectroscopy (EIS) were carried out to evaluate the modification of the surface, its stability against treatment and the changes induced by the adsorption of lead cations. An equivalent circuit of the type R1 [R2 CPE1] CPE2 that explained the results for the actual s… Show more
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