Nafion/multi-wall carbon nanotubes composite film coated glassy carbon electrode for sensitive determination of caffeine

Determination of caffeine content in tea based on poly(safranine T) electroactive film modified electrode

“…Compared with the analytical methods mentioned above, the electroanalytical method is convenient, environment-friendly and low-cost. But the electroanalysis of caffeine has been seldom reported because of the poor electro-activity of caffeine on the conventional electrodes (Yang et al, 2010). Use of a chemically modified electrode may be an effective way to solve this problem.…”

Application of Carbon Nanotubes Modified Electrode in Pharmaceutical Analysis

“…Nafion/CNTs composite thin film-modified electrodes have their attractive effects in electroanalytical applications. Recently, we [5,6] reported that Nafion/CNTs -modified electrode was made, and used as a sensor in the electrochemical determination of caffeine and theophylline. This sensor can ameliorate the problems of high overpotential, slow electrode reaction, and low sensitivity, which occurs at conventional electrodes.…”

Simultaneous Electrochemical Determination of Caffeine and Vanillin by Using Poly(Alizarin Red S) Modified Glassy Carbon Electrode

“…Electroanalytical methods have been commonly exploited as cheap, speedy, and simple options to modern separation and spectral methods. Over the years, to improve the sensitivity and long-term stability of the electrodes, the bare electrodes altered with several electrode modifiers such as nafion, conducting polymers, molecularly imprinted polymers, metal nanoparticles, carbon nanotubes (CNTs), and graphene were used for the individual determination of CAF (Švorc 2013;Brunetti et al 2007;Sun et al 2011a;Yang et al 2010;Sun et al 2011b;Amare and Admassie 2012;Wang et al 2004;Wei et al 2009;Xiong et al 2013;Lu et al 2012;Alizadeh et al 2010;Aklilu et al 2008;Ly et al 2008;Ly et al 2009;Habibi et al 2012;Martínez-Huitle et al 2010;Guo et al 2011;Yardım et al 2013) and VAN (Zheng et al 2010;Bettazzi et al 2006;Luque et al 2000;Peng et al 2012;Kong et al 2010;Deng et al 2015;Shang et al 2014;Luo and Liu 2012;Xinying 2014;Chethanaa et al 2012). It was noted that determination of CAF has predominantly been performed by voltammetric methods (Švorc 2013).…”