Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 1249, Issue -, Pages 54-61Publisher
ELSEVIER
DOI: 10.1016/j.chroma.2012.06.043
Keywords
Ultrasound-assisted emulsification-microextraction; Solidification of floating organic drop; Haloanisoles; Volatile phenols; Wine; Experimental design
Funding
- Autonomous Government of La Rioja - Consejeria de Educacion, Cultura y Deporte
- Spanish Government - Ministerio de Ciencia e Innovacion [FPI-2007, CTQ2008-03493/BQU]
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In this study, ultrasound-assisted emulsification microextraction combined with solidification of floating organic drop method (USAEME-SFOD) has been proposed as a novel approach for the sensitive determination of haloanisoles and volatile phenols in wines. For this purpose, the influence of the different parameters affecting the procedure (type and volume of extraction solvent, temperature, time and ionic strength) was evaluated in order to optimise the efficiency of the process. Subsequently, the linearity, detection and quantification limits, precision, recoveries and applicability to real samples were studied, obtaining excellent method performance results. Moreover, USAEME-SFOD was compared with other liquid-liquid microextraction methods such as dispersive liquid-liquid microextraction (DLLME) and ultrasound-assisted emulsification microextraction (USAEME). This comparison study proved the suitability of USAEME-SFOD as an alternative to previously reported methods for the simultaneous determination of cork taint and Brett character responsible compounds in wines. (C) 2012 Elsevier B.V. All rights reserved.
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