Voltammetric Determination of Ferulic Acid Using Polypyrrole-Multiwalled Carbon Nanotubes Modified Electrode with Sample Application

Nanomaterials

Refat Abdel-Hamid²  Emad F. Newair¹ 

[1] Unit of Electrochemistry Applications (UEA), Chemistry Department, Faculty of Science, Sohag University, Sohag 82524, Egypt; E-Mail

关键词: voltammetry;    polypyrrole-multiwalled carbon nanotubes;    ferulic acid;    modified electrode;   

DOI  :  10.3390/nano5041704

来源: mdpi

【 摘 要 】

A polypyrrole-multiwalled carbon nanotubes modified glassy carbon electrode-based sensor was devised for determination of ferulic acid (FA). The fabricated sensor was prepared electrochemically using cyclic voltammetry (CV) and characterized using CV and scanning electron microscope (SEM). The electrode shows an excellent electrochemical catalytic activity towards FA oxidation. Under optimal conditions, the anodic peak current correlates linearly to the FA concentration throughout the range of 3.32 × 10⁻⁶ to 2.59 × 10⁻⁵ M with a detection limit of 1.17 × 10⁻⁶ M (S/N = 3). The prepared sensor is highly selective towards ferulic acid without the interference of ascorbic acid. The sensor applicability was tested for total content determination of FA in a commercial popcorn sample and showed a robust functionality.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.