Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/5281
Título: SPE-LC-FD Determination of Polycyclic Aromatic Hydrocarbon Monohydroxy Derivatives in Cephalopods
Autor: Lourenço, Diana
Silva, Liliana J.G.
Lino, Celeste M.
Morais, Simone
Pena, Angelina
Palavras-chave: Polycyclic aromatic hydrocarbons
Monohydroxy derivatives
Solid-phase extraction
Liquid chromatography with fluorescence detection
Data: 26-Mar-2014
Editora: American Chemical Society
Relatório da Série N.º: Journal of Agricultural and Food Chemistry;Vol. 62, Issue 12
Resumo: A new analytical methodology, based on liquid chromatography with fluorescence detection (LC-FD), after extraction, enzymatic hydrolysis, and solid-phase extraction (SPE) through Oasis HLB cartridges, was developed and validated for the simultaneous determination of three monohydroxy derivatives of polycyclic aromatic hydrocarbons (PAHs). The optimized analytical method is sensitive, accurate, and precise, with recoveries between 62 and 110% and limits of detection of 227, 9, and 45 ng/g for 1-hydroxynaphthalene, 2-hydroxyfluorene, and 1-hydroxypyrene, respectively. Their levels were estimated in different cephalopod matrices (edible tissues and hemolymph). The methodology was applied to samples of the major cephalopod species consumed worldwide. Of the 18 samples analyzed, 39% were contaminated with 1-hydroxynaphthalene, which was the only PAH metabolite detected. Its concentration ranged from 786 to 1145 ng/g. This highly sensitive and specific method allows the identification and quantitation of PAH metabolites in forthcoming food safety and environmental monitoring programs.
Peer review: yes
URI: http://hdl.handle.net/10400.22/5281
DOI: 10.1021/jf4056852
Versão do Editor: http://pubs.acs.org/doi/abs/10.1021/jf4056852
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