Evaluation of multiple solid-phase microextraction as a technique to remove the matrix effect in packaging analysis for determination of volatile organic compounds

  1. Ezquerro, O. 1
  2. Pons, B. 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: 2003

Volumen: 1020

Número: 2

Páginas: 189-197

Tipo: Artículo

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DOI: 10.1016/J.CHROMA.2003.08.066 PMID: 14661743 SCOPUS: 2-s2.0-0346734380 WoS: WOS:000186557300004 GOOGLE SCHOLAR

Otras publicaciones en: Journal of Chromatography A

Repositorio institucional: lock_openAcceso abierto Editor

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Resumen

Multiple solid-phase microextraction (SPME) is an useful technique for the direct quantification of solid samples removing any matrix effect. The volatile organic compounds formed in the extrusion-coating process of multilayer packaging materials have already been quantified by multiple HS-SPME coupled to gas chromatography (GC)-mass spectrometry (MS) using volatile organic compound (VOC) solutions in hexadecane for calibration. In this article, water is proposed as solvent to prepare the calibration solutions because it provides a shorter calibration time, better linearity, better reproducibility, and lower detection limits than hexadecane. Besides, the extraction of VOCs from aqueous solutions is exhaustive and avoids the extrapolations needed to calculate the total peak areas, as they can be calculated as the sum of the individual areas of each extraction. Finally, it is checked whether the two solvents provide the same mean values for the total peak areas. © 2003 Elsevier B.V. All rights reserved.