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Cyclic voltammetric determination of 4-chloroaniline using natural phosphate modified carbon paste electrode

Tarik El ouafy, Abdelilah Chtaini, Hassan Oulfajrite, Rachida Najih

A carbon paste electrode modified with natural phosphate (NP) was evaluated as an electrochemical sensor for 4-Chloroaniline (4-CA) in aqueous medium. The electrode was prepared by mixed natural phosphate and carbon powder. The influence of accumulation time and pH of the electrolytic solution were investigated. The calibration graph obtained under the optimized conditions was linear. The natural phosphate modified carbon paste electrode was applied to the determination of 4-CAin naturalwater samples. The results indicate that this electrode is sensitive and effective for the determination of 4-CA.