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https://locus.ufv.br//handle/123456789/21393
Tipo: | Artigo |
Título: | Multiple headspace-solid-phase microextraction as a powerful tool for the quantitative determination of volatile radiolysis products in a multilayer food packaging material sterilized with γ-radiation |
Autor(es): | Oliveira, Cristiane Patrícia de Rodriguez-Lafuente, Angel Soares, Nilda de Fátima Ferreira Nerin, Cristina |
Abstract: | A method consisting of multiple headspace solid-phase microextraction followed by gas chromatography–mass spectrometry analysis was developed and used to determine the main volatile radiolysis products formed by γ-irradiation of flexible multilayer food packaging samples. The developed method allows the use of solid-phase microextraction in the quantification of compounds from plastic solid samples. A screening of volatiles in the γ-irradiated and non-irradiated films was performed and 29 compounds were identified in the irradiated packaging, 17 of which were absent in the non-irradiated samples. The main volatile radiolysis products identified were: 1,3-di-tert-butylbenzene; 2,6-di-tert-butyl-1,4-benzoquinone; 4-tert-butyl-phenol and the off-odor compounds butanoic acid and valeric acid. These volatile radiolysis compounds were determined with the proposed method and the results are shown and discussed. Solid–liquid extraction and headspace solid-phase microextraction methods were also studied for comparative purposes. The automated solvent-free multiple HSPME technique here presented can be used to quantify the radiolysis compounds in irradiated plastic solid samples in a simple way with the advantages of being free from matrix influence and environmentally friendly. |
Palavras-chave: | Multiple solid-phase microextraction Food packaging material γ-Irradiation Volatile radiolysis compounds GC–MS |
Editor: | Journal of Chromatography A |
Tipo de Acesso: | Elsevier B.V. |
URI: | https://doi.org/10.1016/j.chroma.2012.05.013 http://www.locus.ufv.br/handle/123456789/21393 |
Data do documento: | 29-Jun-2012 |
Aparece nas coleções: | Artigos |
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artigo.pdf Until 2100-12-31 | texto completo | 483,06 kB | Adobe PDF | Visualizar/Abrir ACESSO RESTRITO |
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