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Restricted self-diffusion of water in a highly concentrated W/O emulsion studied using modulated gradient spin-echo NMR

Topgaard, Daniel LU ; Malmborg, Carin LU and Söderman, Olle LU (2002) In Journal of Magnetic Resonance 156(2). p.195-201
Abstract
Restricted diffusion of water in a highly concentrated w/o emulsion was studied using pulsed field gradient spin echo techniques. The standard two-pulse version of this technique, suitable for analysis in the time domain, fails to investigate the short time-scale for diffusion inside a single emulsion droplet with radius 0.7 mum. With a pulse-train technique, originally introduced by Callaghan and Stepisnik, shorter time-scales are accessible. The latter approach is analyzed in the frequency domain and yields frequency dependent diffusion coefficients. Predictions for the outcome of the experiment were calculated in the time domain using the Gaussian phase distribution and the pore hopping formalism expressions for the echo attenuation.... (More)
Restricted diffusion of water in a highly concentrated w/o emulsion was studied using pulsed field gradient spin echo techniques. The standard two-pulse version of this technique, suitable for analysis in the time domain, fails to investigate the short time-scale for diffusion inside a single emulsion droplet with radius 0.7 mum. With a pulse-train technique, originally introduced by Callaghan and Stepisnik, shorter time-scales are accessible. The latter approach is analyzed in the frequency domain and yields frequency dependent diffusion coefficients. Predictions for the outcome of the experiment were calculated in the time domain using the Gaussian phase distribution and the pore hopping formalism expressions for the echo attenuation. The results of these calculations were transformed to the frequency domain via a numerical inverse integral transform in order to compare with the experimental results. (C) 2002 Elsevier Science (USA). (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
modulated gradients, spectrum, diffusion, highly concentrated emulsion, self-diffusion, PFG SE NMR
in
Journal of Magnetic Resonance
volume
156
issue
2
pages
195 - 201
publisher
Elsevier
external identifiers
  • pmid:12165254
  • wos:000177480900005
  • scopus:0036041662
ISSN
1096-0856
DOI
10.1006/jmre.2002.2556
language
English
LU publication?
yes
id
7f1971bb-88f2-4f43-8fe6-f4ffae003eed (old id 330995)
date added to LUP
2007-10-11 07:44:09
date last changed
2017-01-01 06:51:32
@article{7f1971bb-88f2-4f43-8fe6-f4ffae003eed,
  abstract     = {Restricted diffusion of water in a highly concentrated w/o emulsion was studied using pulsed field gradient spin echo techniques. The standard two-pulse version of this technique, suitable for analysis in the time domain, fails to investigate the short time-scale for diffusion inside a single emulsion droplet with radius 0.7 mum. With a pulse-train technique, originally introduced by Callaghan and Stepisnik, shorter time-scales are accessible. The latter approach is analyzed in the frequency domain and yields frequency dependent diffusion coefficients. Predictions for the outcome of the experiment were calculated in the time domain using the Gaussian phase distribution and the pore hopping formalism expressions for the echo attenuation. The results of these calculations were transformed to the frequency domain via a numerical inverse integral transform in order to compare with the experimental results. (C) 2002 Elsevier Science (USA).},
  author       = {Topgaard, Daniel and Malmborg, Carin and Söderman, Olle},
  issn         = {1096-0856},
  keyword      = {modulated gradients,spectrum,diffusion,highly concentrated emulsion,self-diffusion,PFG SE NMR},
  language     = {eng},
  number       = {2},
  pages        = {195--201},
  publisher    = {Elsevier},
  series       = {Journal of Magnetic Resonance},
  title        = {Restricted self-diffusion of water in a highly concentrated W/O emulsion studied using modulated gradient spin-echo NMR},
  url          = {http://dx.doi.org/10.1006/jmre.2002.2556},
  volume       = {156},
  year         = {2002},
}