Nuclear magnetic resonance studies of water in tree sections

Byrne, G.F.; Fenn, M. David; Burgar, M.

doi:10.1016/0168-1923(86)90019-5

Cited by 19 publications

(8 citation statements)

References 7 publications

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“…Numerous studies of one-dimensional (1D) relaxation time distributions in wood (Nanassy 1973(Nanassy , 1974Riggin et al 1979;Byrne et al 1986;Araujo et al 1992;Hartley et al 1994;Fantazzini et al 2006;Labbe et al 2006;Ahmeida et al 2007;Thygesen and Elder 2008) revealed multi-modal distribution of relaxation times representing water in different structural environments. These typically include a slowly relaxing component (;100 ms) characteristic of the lumen water within cells that is seen only above fibre saturation point (FSP) and one or more intermediate relaxing components (;1-10 ms) assigned to water in cell walls.…”

Section: Introductionmentioning

confidence: 99%

A study of water exchange in wood by means of 2D NMR relaxation correlation and exchange

Cox¹,

McDonald

Gardiner³

2010

Holzforschung

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Two-dimensional T 1 -T 2 1 H NMR relaxation correlation spectra and T 2 -T 2 relaxation exchange spectra for samples of spruce wood across the full moisture content range from 0% to )100% are presented. The T 1 -T 2 spectra unambiguously identify water in different environments within the wood that overlap in the corresponding and more traditional one-dimensional T 1 or T 2 experiment. The T 2 -T 2 spectra unambiguously reveal the presence of water exchange between the lumen and cell wall above the fibre saturation point in sapwood. An estimate is made of the exchange rate: 1/30 to 1/3 ms -1 .

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Section: Introductionmentioning

confidence: 99%

A study of water exchange in wood by means of 2D NMR relaxation correlation and exchange

Cox¹,

McDonald

Gardiner³

2010

Holzforschung

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“…In addition, the distribution of the different water components in wood (3) and change and hence provide details about the interactions between wood-water spin groups. water diffusion in wood material (6)(7)(8) has been investigated.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Spin–Spin Coupling in Wood by 2D Time-Domain NMR

Oleskevich

Ghahramany

Węglarz

et al. 1996

Journal of Magnetic Resonance, Series B

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“…Different approaches have been used to visualize the distribution of water in tree trunks such as gamma-ray attenuation (Edwards & Jarvis, 1983;Brough et al, 1986), computer tomography (Raschi et al, 1995), and nuclear magnetic resonance (Byrne et al, 1986). There have also been some attempts to develop electronic techniques, such as frequency and time domain reflectometry (TDR).…”

Section: Introductionmentioning

confidence: 99%