期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2020
卷号：11
期号：3
页码：512-521
出版社：University of Mohammed Premier Oujda
摘要：Poly(Arginine) modified carbon nanotube paste electrode (PAMCNTPE) was prepared andit was approachable and discriminatory electrocatalytic sensor for Vanillin (VAN)determination using Linear Sweep Voltammetry (LSV), Cyclic Voltammetry (CV) andDifferential Pulse Voltammetry (DPV). The surface morphology of the formulated sensoris investigated by Field Emission Scanning Electron Microscope (FESEM). The tailor madeelectrode has exposed an exceptional electrocatalytic effect to VAN detection whencompared to bare carbon nanotube paste electrode (BCNTPE). Under the optimizedcircumstances, the quantification of VAN at the developed electrode has revealed the linearrange 2 ×10-6 M to 1×10-5 M and 1.5 ×10-5 M to 4.5×10-5 M and a limit of detection 3.3 ×10-8 M. Instantaneous resolving of VAN and Caffeine (CAF) shows a well separated peaksat 0.508 V and 1.281 V. Applicability of the developed electrode is studied using foodsample, shows the recovery in the range of 95.92%to 99.73%, this indicates that themodified electrode is having better analytical performance and can be used for thedetermination of VAN in commercial food samples.
