Determination of 2,4,6-trichloroanisole and guaiacol in cork stoppers by pressurised fluid extraction and gas chromatography-mass spectrometry

  1. Ezquerro, Ó. 1
  2. Garrido-López, Á. 1
  3. Tena, M.T. 1
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

Revista:
Journal of Chromatography A

ISSN: 0021-9673

Año de publicación: 2006

Volumen: 1102

Número: 1-2

Páginas: 18-24

Tipo: Artículo

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DOI: 10.1016/J.CHROMA.2005.10.023 PMID: 16257409 SCOPUS: 2-s2.0-29044440580 WoS: WOS:000234691900003 GOOGLE SCHOLAR

Otras publicaciones en: Journal of Chromatography A

Resumen

This paper describes the development of an analytical method consisting of pressurised fluid extraction (PFE) and gas chromatography-mass spectrometry (GC-MS) using experimental designs to determine two volatile compounds in naturally-tainted cork stoppers. The target analytes, 2,4,6-trichloroanisole (2,4,6-TCA) and guaiacol, are involved in the cork taint of wine. First, a Plackett-Burman experimental design was carried out in order to determine the significant experimental parameters affecting the PFE process, and then a central composite design was used to optimise these significant parameters. Once the method had been optimised, the influence of the number of extraction cycles was studied. The method was applied to determine the concentration of 2,4,6-TCA and guaiacol in three cork samples, and the results were compared with the ones obtained by multiple headspace-solid-phase microextraction (MHS-SPME) and by Soxhlet extraction. © 2006 Elsevier B.V. All rights reserved.