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Research Paper | Chemical Sciences | Volume 15 Issue 4, April 2026 | Pages: 1621 - 1626 | India
Sensitive Voltammetric Sensor for the Determination of L-Lysine Using Grapheme Nanoparticles Modified Carbon Paste Electrode
Abstract: The fabrication of graphene nanoparticles and ?- cyclodextrin modified carbon paste electrode (G-CD-CME) enabled facile electrochemical determination of Lysine (LYS) using differential pulse voltammetry. The graphene nanoparticles with β- cyclodextrin showed a synergistic effect by showing enhanced electrochemical signals in the rate of reduction of LYS by increasing the peak current with a corresponding decline of peak potential compared to carbon paste electrode which makes the reduction process thermodynamically more favorable. The modified electrode had a good sensitivity towards determination of LYS in a linear working range of 4.76 ?10-7 to 1.10 ?10-3 M with corresponding detection limits and 2.01 ?10-7 M LYS.
Keywords: β- cyclodextrin, Graphene nanoparticles, Lysine, Differential pulse voltammetry
How to Cite?: Dr. Mal Phebe Kingsley, "Sensitive Voltammetric Sensor for the Determination of L-Lysine Using Grapheme Nanoparticles Modified Carbon Paste Electrode", Volume 15 Issue 4, April 2026, International Journal of Science and Research (IJSR), Pages: 1621-1626, https://www.ijsr.net/getabstract.php?paperid=SR26425235919, DOI: https://dx.doi.org/10.21275/SR26425235919