Electrochemical Sensor for the Determination of Methylthiouracil in Meat Samples
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Título: | Electrochemical Sensor for the Determination of Methylthiouracil in Meat Samples |
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Autor/es: | Marco, Andrea | Canals, Antonio | Morallon, Emilia | Aguirre Pastor, Miguel Ángel |
Grupo/s de investigación o GITE: | Electrocatálisis y Electroquímica de Polímeros | Espectroscopía Atómica-Masas y Química Analítica en Condiciones Extremas |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Departamento de Química Analítica, Nutrición y Bromatología | Universidad de Alicante. Instituto Universitario de Materiales |
Palabras clave: | Electrochemical sensor | Methylthiouracil | Food analysis | Screen-printed electrodes | Meat |
Fecha de publicación: | 15-nov-2022 |
Editor: | MDPI |
Cita bibliográfica: | Marco A, Canals A, Morallón E, Aguirre MÁ. Electrochemical Sensor for the Determination of Methylthiouracil in Meat Samples. Sensors. 2022; 22(22):8842. https://doi.org/10.3390/s22228842 |
Resumen: | Two analytical methods based on miniaturized electrochemical sensors, voltammetric and amperometric sensors, have been developed for the determination of 6-methyl-2-thiouracil (MTU) in meat consumption samples (beef liver and foie). A multivariate approach has been considered to optimize the experimental procedure including extraction and electrochemical detection. Under optimal conditions and at a typical working potential of 1.55 V (vs Ag pseudo-reference electrode), response is linear in the range 0 to 20 µg L−1 MTU concentration range. The empirical limit of detection is 0.13 µg L−1, lower than the maximum concentration established by legislation. The electrochemical methods have been used to analyze MTU-spiked meat samples, and recovery values varying between 85 and 95% with coefficients of variation <30%. The analytical methods developed with the miniaturized electrochemical sensors can successfully determine the concentration of MTU in real meat samples with high accuracy, being the results obtained similar to those provided by other methods such as UV-Vis spectrophotometry. Finally, the degree of sustainability of the electrochemical sensors-based developed method has been quantified by means of the Analytical Eco-Scale. |
Patrocinador/es: | This research was funded by Spanish Ministry of Science and Innovation grant number PID2021-126155OB-I00 and Regional Government of Valencia grant number CIPROM/2021/062, and Spanish Ministry of Science, Innovation and Universities (RED2018-102522-T). |
URI: | http://hdl.handle.net/10045/130088 |
ISSN: | 1424-8220 |
DOI: | 10.3390/s22228842 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3390/s22228842 |
Aparece en las colecciones: | INV - SP-BG - Artículos de Revistas INV - GEPE - Artículos de Revistas |
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