Méthode électroanalytique pour la détection d’un perturbateur endocrinien, l’acide perfluorooctane

Résumé

Electroanalytical method for the detection of an endocrine disruptor, perfluorooctanoic acid

Perfluorinated compounds are endocrine disruptors (EDs) that negatively impact human health. They are increasingly suspected in contributing to the deterioration of reproductive health. The development of electrochemical sensors for the detection of these compounds is therefore necessary to prevent any risk of contamination. This work involved the development of an electrochemical sensor capable of detecting perfluorooctane acid, a perfluorinated acid, at low concentrations. To do this, a carbon paste electrode modified with aloe vera was developed. This has been used in the presence of perfluorooctane acid (PFOA) in order to detect it by electrochemical methods, such as cyclic voltammetry and square wave voltammetry. Some electrochemical parameters such as the influence of pH, the contact time, the influence of the concentration of PFOA, the detection limit have been studied.

 Keywords: Synthesis; Modified electrode; Perfluorooctane acid; Electrochemical sensor; Aloe vera.