Multi-dimensional inverse Laplace spectroscopy in the NMR of porous media

被引：49

作者：

Galvosas, Petrik ^{[1
]}

Callaghan, Paul T. ^{[1
]}

机构：

[1] Victoria Univ Wellington, Sch Chem & Phys Sci, MacDiarmid Inst Adv Mat & Nanotechnol, Wellington, New Zealand

来源：

COMPTES RENDUS PHYSIQUE | 2010年 / 11卷 / 02期

关键词：

Multi-dimensional NMR; Diffusion; Exchange; Anisotropy; Relaxation; Inverse Laplace transformation; Porous media; DIFFUSION CORRELATION; RELAXATION; EXCHANGE; REGULARIZATION; WATER;

D O I：

10.1016/j.crhy.2010.06.014

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Multi-dimensional NMR methods based on Inverse Laplace Transformations (ILT) may be used to examine the behavior of liquid state molecules in a porous matrix. The ILT is particularly useful when the signal is characterized by multi-exponential decay, for example in spin relaxation or in the dephasing of the NMR spin echo signal associated with molecular diffusion under the influence of pulsed magnetic or internal field gradients. Both correlation and exchange experiments are possible, the latter providing insight regarding the migration of molecules between regions characterized by different local dynamics. (C) 2010 Published by Elsevier Masson SAS on behalf of Academie des sciences.

引用

页码：172 / 180

页数：9

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