Sensitive Detection of Anthrone using Poly (L-Arginine) modified Carbon paste electrode by Voltammetric Method

A sensitive method was developed for the detection of an Anthrone (ANT) using poly (L-Arginine) modified carbon paste electrode (MCPE). Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were used to investigate the electrochemical behavior of ANT in 0.2 M phosphate buffer solution (PBS) of pH 7.0 at poly (L-Arginine) MCPE. The poly (L-Arginine) MCPE shows a good electro catalytic activity towards the electrochemical behavior of ANT. A technique like Field emission scanning electron microscopy (FESEM) has been used to study the surface morphology of BCPE and MCPE. Detection of small amounts of ANT was done by using CV as an electrochemical sensitive analytical method. An effective linear range of 6×10-6 to 1.0×10-4 M with limit of detection 4.7 × 10-6 M and limit of quantification 1.5 × 10-5 M was obtained for ANT. The poly (L-Arginine) MCPE exhibited an excellent reproducibility, long-term stability, high sensitivity. These results offer the development of a simple, rapid response, and low cost electrochemical sensor and developed poly (L-Arginine) MCPE as an electrochemical sensor was successfully applied to detect the ANT by Cyclic voltammetric technique.

Keywords: Carbon paste electrode, L-Arginine, Anthrone, Cyclic voltammetry, Differential pulse Voltammetry.