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An electrochemical sensor was prepared by modification of glassy carbon electrode (GCE) with an organoclay obtained by intercalation of smectite-type clay Sa(Na) with dimethydioctadecylammonium ions (DODAB) and polymer of alizarin red S (poly [ARS]). The synthesized materials were analyzed by physicochemical and electrochemical techniques. The fabricated sensor GCE/Sa (DODAB)/poly(ARS) was employed toward the detection of diuron and the detection limit was found to be 0.48 μM (0.11 mg/L). Additionally, the elaborated electrochemical sensor was found to exhibit good sensitivity, stability, and reproducibility toward the determination of diuron, and it was applied successfully in real samples.

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In this work, Palm oil fiber (POF) grafted functionalized multiwall carbon nanotube (FMWCNT) decorated ferrocene (Fc) have been drop coated on platinum electrode (Pt), in which uricase (UOx) has been...