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Artículo

Enhanced electrochemical detection of quercetin by Natural Deep Eutectic Solvents

Gomez, Federico Jose VicenteIcon ; Espino, Magdalena BelénIcon ; Fernández, María de Los ÁngelesIcon ; Raba, JulioIcon ; Silva, María FernandaIcon
Fecha de publicación: 09/2016
Editorial: Elsevier Science
Revista: Analytica Chimica Acta
ISSN: 0003-2670
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Químicas

Resumen

New trends in analytical chemistry encourage the development of smart techniques and methods aligned with Green Chemistry. In this sense, Natural Deep Eutectic Solvents represents an excellent opportunity as a new generation of green solvents. In this work a new application for them has been proposed and demonstrated. These solvents were synthesized by combinations of inexpensive and natural components like, Glucose, Fructose, Citric acid and Lactic acid. The different natural solvents were easily prepared and added to buffer solution in different concentrations, allowing the enhancement of electrochemical detection of an important representative antioxidant like quercetin (QR) with improved signal up to 380%. QR is a ubiquitous flavonoid widespread in plants and food of plant origin. The proposed method using phosphate buffer with a eutectic mixture of Citric acid, Glucose and water in combination with carbon screen printed electrodes exhibited a good analytical performance. Detection and quantification limits were of 7.97 and 26.3 nM respectively; and repeatability with %RSDs of 1.41 and 7.49 for peak potential and intensity respectively. In addition, it has proved to be faster, greener and cheaper than other sensors and chromatographic methods available with the additional advantage of being completely portable. Furthermore, the obtained results demonstrated that the proposed method is able for the determination of QR in complex food samples.
Palabras clave: Enhanced Electrochemical Detection , Nades , Onions , Polyphenols , Quercetin
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/40042
URL: https://www.sciencedirect.com/science/article/pii/S0003267016308431
DOI: http://dx.doi.org/10.1016/j.aca.2016.07.022
Colecciones
Articulos(IBAM)
Articulos de INST.DE BIOLOGIA AGRICOLA DE MENDOZA
Articulos(INQUISAL)
Articulos de INST. DE QUIMICA DE SAN LUIS
Citación
Gomez, Federico Jose Vicente; Espino, Magdalena Belén; Fernández, María de Los Ángeles; Raba, Julio; Silva, María Fernanda; Enhanced electrochemical detection of quercetin by Natural Deep Eutectic Solvents; Elsevier Science; Analytica Chimica Acta; 936; 9-2016; 91-96
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