Determination of phthalates in wine by headspace solid-phase microextraction followed by gas chromatography-mass spectrometry. Use of deuterated phthalates as internal standards

  1. Carrillo, J.D. 1
  2. Martínez, M.P. 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: 2008

Volumen: 1181

Número: 1-2

Páginas: 125-130

Tipo: Artículo

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DOI: 10.1016/J.CHROMA.2007.12.053 PMID: 18191868 SCOPUS: 2-s2.0-38949206828 WoS: WOS:000253506600014 GOOGLE SCHOLAR

Otras publicaciones en: Journal of Chromatography A

Resumen

This study proposes the use of deuterated phthalates as internal standards for the accurate determination of phthalates in wine by headspace solid-phase microextraction followed by gas chromatography-mass spectrometry. Unlike other internal standards proposed previously such as benzyl benzoate, deuterated phthalates enabled matrix-error free determinations to be performed without standard addition because statistically equal slopes were obtained for synthetic, white, rose and red wines. The relative standard deviation values under intermediate precision conditions ranged from 0.24 to 4.6%, and detection limits below 35 ng L -1 were obtained. Recovery values were around 100% in most of cases and the method provided similar results to standard addition. Finally, the method was used to screen phthalate levels in 10 wine samples. © 2007 Elsevier B.V. All rights reserved.