Time-domain 1H NMR characterization of the liquid phase in greenwood

The time domain of 1H NMR spectroscopy allows straightforward editing of the T 2 relaxation profiles in maritime pine wood. A new method from the Carr-Purcell-Meiboom-Gill sequence is proposed to measure the amount and distribution of water in wood, as well as the location of major dissolved organic...

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Veröffentlicht in:Holzforschung 2006-05, Vol.60 (3), p.265-270
Hauptverfasser: Labbé, Nicole, De Jéso, Bernard, Lartigue, Jean-Claude, Daudé, Gérard, Pétraud, Michel, Ratier, Max
Format: Artikel
Sprache:eng
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Zusammenfassung:The time domain of 1H NMR spectroscopy allows straightforward editing of the T 2 relaxation profiles in maritime pine wood. A new method from the Carr-Purcell-Meiboom-Gill sequence is proposed to measure the amount and distribution of water in wood, as well as the location of major dissolved organic materials. A general calibration model giving reliable and precise identification of these parameters is described. The method presented for editing T 2 relaxation profiles (obtained by the Contin program) may be helpful in solving practical drying and gluing problems in the wood industry. It can be used for monitoring chemical modifications of wood fibers involved in the design of wood composite materials.
ISSN:0018-3830
1437-434X
DOI:10.1515/HF.2006.043