Determination of Carbonyl Compounds in Cork Agglomerates by GDME-HPLC-UV: Identification of the Extracted Compounds by HPLC-MS/MS

• Tipo: Artigo em Revista Científica Internacional
• Data: 2017

Autores

Brandao, PF (Autor) Outra; Ramos, RM (Autor) FCUP; Almeida, PJ (Autor) FCUP; Rodrigues, JA (Autor) FCUP

Revista

Título: Journal of Agricultural and Food Chemistry

Vol. 65

Páginas: 1037-1042

ISSN: 0021-8561

Editora: American Chemical Society

Indexação

ISI Web of Knowledge - 14 Citações

Scopus - 12 Citações

Outras Informações

ID Authenticus: P-00M-FCA

DOI: 10.1021/acs.jafc.6b05370

Abstract (EN): A new approach is proposed for the extraction and determination of carbonyl compounds in solid samples, such as wood or cork materials. Cork products are used as building materials due to their singular characteristics; however, little is known about its aldehyde emission potential and content. Sample preparation was done by using a gas-diffusion microextraction (GDME) device for the direct extraction of volatile aldehydes and derivatization with 2,4-dinitrophenylhydrazine. Analytical determination of the extracts was done by HPLC-UV, with detection at 360 nm. The developed methodology proved to be a reliable tool for aldehyde determination in cork agglomerate samples with suitable method features. Mass spectrometry studies were performed for each sample, which enabled the identification, in the extracts, of the derivatization products of a total of 13 aldehydes (formaldehyde, acetaldehyde, furfural, propanal, S-methylfurfural, butanal, benzaldehyde, pentanal, hexanal, trans-2-heptenal, heptanal, octanal, and trans-2-nonenal) and 4 ketones (3-hydroxy-2-butanone, acetone, cyclohexanone, and acetophenone). This new analytical methodology simultaneously proved to be consistent for the identification and determination of aldehydes in cork agglomerates and a very simple and straightforward procedure.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6