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J Agric Food Chem

Title:		Determination of Carbonyl Compounds in Cork Agglomerates by GDME-HPLC-UV: Identification of the Extracted Compounds by HPLC-MS/MS
Author(s):		Brandao PF; Ramos RM; Almeida PJ; Rodrigues JA;
Address:		"REQUIMTE/LAQV - Departamento de Qui?nmica e Bioqui?nmica, Faculdade de Ciencias, Universidade do Porto , Rua do Campo Alegre no. 687, 4169-007 Porto, Portugal"
Journal Title:		J Agric Food Chem
Year:		2017
Volume:		20170130
Issue:		5
Page Number:		1037 - 1042
DOI:		10.1021/acs.jafc.6b05370
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"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, 5-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"
Keywords:		"Aldehydes/*chemistry Chromatography, High Pressure Liquid/*methods Plant Extracts/*chemistry Quercus/*chemistry Tandem Mass Spectrometry/*methods Wood/*chemistry building materials dnph mass spectrometry volatile extraction volatile organic compounds;"
Notes:		"MedlineBrandao, Pedro Francisco Ramos, Rui Miguel Almeida, Paulo Joaquim Rodrigues, Jose Antonio eng Evaluation Study 2017/01/19 J Agric Food Chem. 2017 Feb 8; 65(5):1037-1042. doi: 10.1021/acs.jafc.6b05370. Epub 2017 Jan 30"