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Artículo

Filter-vial dispersive solid-phase extraction as a simplified clean-up for determination of ethylphenols in red wines

Fontana, Ariel RamónIcon ; Bottini, Ambrosio RubénIcon
Fecha de publicación: 09/2017
Editorial: Elsevier
Revista: Food Chemistry
ISSN: 0308-8146
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Alimentos y Bebidas

Resumen

In-vial filtration with dispersive solid-phase extraction (d-SPE) clean-up of QuEChERS (quick, easy, cheap, effective, rugged and safe) extracts is proposed for the determination of ethylphenols (EPs) in red wines. Analytes were extracted from 5 mL wine sample (previously alkalinized with 0.5% sodium hydroxide) using 5 mL acetonitrile. For phase separation, 1.5 g NaCl and 4 g anhydrous MgSO4 were added. Then, a 0.5 mL aliquot of the partitioned supernatant was cleaned-up using d-SPE and in-vial filtration with a combination of anhydrous CaCl2 (100 mg) and primary-secondary amine (PSA, 25 mg) as sorbents. The proposed method provided limits of quantification (LOQs) ranging from 0.024 to 0.04 mg L−1. Considering matrix-matched calibration as quantification technique, the recoveries (accuracy) ranged between 73% and 116%. The method was applied for the determination of EPs in 15 commercial wines of Argentina, where 4-EP was quantified at concentrations ranging from 0.25 to 3.01 mg L−1.
Palabras clave: Brett Character , D-Spe with In-Vial Filtration , Ethylphenols , Liquid Chromatography , Quechers , Wine
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/40008
URL: http://www.sciencedirect.com/science/article/pii/S0308814617304648
DOI: http://dx.doi.org/10.1016/j.foodchem.2017.03.084
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Articulos(IBAM)
Articulos de INST.DE BIOLOGIA AGRICOLA DE MENDOZA
Citación
Fontana, Ariel Ramón; Bottini, Ambrosio Rubén; Filter-vial dispersive solid-phase extraction as a simplified clean-up for determination of ethylphenols in red wines; Elsevier; Food Chemistry; 230; 9-2017; 405-410
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