@misc{10498/36859,
year = {2025},
month = {3},
url = {http://hdl.handle.net/10498/36859},
abstract = {Sonogel-Carbon electrodes have been applied successfully in the determination of phenylalanine (Phe). These handmade economical sensor devices exhibit better electroanalytical performance than commercial electrodes, and by a fast surface polarization step the electrochemical signal was significantly increased. Improvements in the electrochemically active surface area and electrical conductivity were demonstrated. Excellent figures of merits were assessed, such as a sensitivity value of 68.19 ± 3.11 µA mM−1 cm−2 comparable to other previously reported devices and limit of detection of 31.92 ± 3.75 µM. Sonogel-Carbon electrodes exhibit worthy selectivity in the presence of other amino acids and electroactive species. Finally, satisfactory recovery values between 96 and 101 % were obtained when this material was applied in the determination of Phe in a food supplement sample. Sonogel-Carbon electrodes stand out compared to other reported sensor devices due to their simple, low-cost and eco-friendly manufacturing; their reusability; and their robust and selective electrochemical performance.},
publisher = {Elsevier},
keywords = {Electrochemical sensor},
keywords = {Sonogel-Carbon},
keywords = {Phenylalanine},
keywords = {Food supplement},
keywords = {Voltammetry},
title = {Electroanalysis of phenylalanine in food supplement by differential pulse voltammetry technique: Application of economical and handmade Sonogel-Carbon electrodes improved with a fast polarization step},
doi = {10.1016/j.microc.2025.113208},
author = {Sierra Padilla, Alfonso and Monari, A. and Palacios Santander, José María and García Guzmán, Juan José and Pigani, L. and Cubillana Aguilera, Laura},
}