Experimental time saving in NMR measurement of time dependent diffusion coefficients

Abstract : In this Letter, we describe a simplification of traditional NMR diffusion experiments suitable for the case of time dependent diffusion coefficients. It is shown that by setting the experimental attenuation parameter b = gamma (2)g(2)delta (2)t(d), where td is the diffusion time, to a fixed value, it is possible to observe the characteristic variation of the normalized echo amplitude in restricted diffusion conditions and to construct the experimental curve D(t(d))/D-0 without actually performing all the measurements of the diffusion coefficient at the various times. This yields dramatic experimental time reduction. (C) 2001 Elsevier Science B.V. All rights reserved.
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Paulo de Sousa, Daniel Abergel, Jean-Yves Lallemand. Experimental time saving in NMR measurement of time dependent diffusion coefficients. Chemical Physics Letters, Elsevier, 2001, 342 (41671), pp.45-50. ⟨10.1016/S0009-2614(01)00575-9⟩. ⟨hal-00954875⟩

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