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Title: Wood typification by Venturi easy ambient sonic spray ionization mass spectrometry: the case of the endangered Mahogany tree
Authors: Cabral, Elaine Cristina
Simas, Rosineide Costa
Santos, Vanessa Goncalves dos
Queiroga, Carmen Lucia
Cunha, Valnei Smarçaro da
Sá, Gilberto Fernandes de
Daroda, Romeu José
Eberlin, Marcos Nogueira
Keywords: Análise química - espectometria de massa
Análise química : madeira
Floresta - preservação
Ionização ambiente
MS fingerprinting
Ionização por pulverização sônica
Marcador fitoquímico
Issue Date: 2012
Citation: CABRAL, Elaine C. et al. Wood typification by Venturi easy ambient sonic spray ionization mass spectrometry: the case of the endangered Mahogany tree. Journal of Mass Spectometry, v. 47, n. 1, p. 1-6, 2012.
Abstract: Venturi easy ambient sonic spray ionization mass spectrometry in both its liquid (VL-EASI-MS) and solid samplemodes (VS-EASI-MS) is shown to provide nearly immediate and secure typification of woods, as demonstrated for Mahogany, an endangered and most valuable type of tropical wood. This reddish wood displays unique phytochemical markers (phragmalin-type limonoids) which are rapidly detected from the wood surface by VS-EASI-MS or from a simple methanol extract of a tiny wood chip by VL-EASI-MS. Unique profiles were obtained for Mahogany (Swietenia macrophylla) whereas genuine samples of six other similar types of woods, which are commonly falsified by artificial coloring and commercialized as Mahogany, display also typical but dissimilar pythochemical profiles as compared to that of the authentic wood. Variable and atypical chemical profiles were observed for artificially colored woods. Secure chemical characterization via VS-EASI-MS or Vs-EASI-MS fingerprints of Mahogany and other types of woods with similar appearance should help to control the illegal logging and trade of this and other endangered woods and their falsification, and to create certified standards. Copyright © 2012 John Wiley & Sons, Ltd.
Description: 6 p. : il.
Document type: Artigo / Article
Unit: Divisão de Metrologia Química - DQUIM
Appears in Collections:DIMAV | Artigos publicados em periódicos internacionais

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