Preparation of Functionalized <i>Ayous</i> Sawdust‐carbon Nanotubes Composite for the Electrochemical Determination of Carbendazim Pesticide
Ghislaine Ariane Fozing Mekeuo, Christelle Despas, Charles Péguy Nanseu‐Njiki, Alain Walcarius, Emmanuel Ngameni
Abstract
Abstract Fine particles of Ayous sawdust (AS) were successfully modified by maleic anhydride to increase their accumulation capability towards carbendazim (Cbz). For a more efficient use of the biosourced material as electrode modifier for electrochemical detection, the functionalized particles were mixed with carbon nanotubes to yield a conductive composite. After electrochemical characterization, the modified GCE was applied to Cbz detection. A sensitivity of (2.61±0.08) μA M −1 and a detection limit of 0.04 μM were obtained under optimized experimental conditions. Moreover, the designed sensor was found efficient for Cbz determination in real samples (spring water and commercial pesticide product).