Pitfalls in PFG NMR Self-Diffusion Measurements with Powder Samples
β Scribed by N.K. Bar; J. Karger; C. Krause; W. Schmitz; G. Seiffert
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 221 KB
- Volume
- 113
- Category
- Article
- ISSN
- 1064-1858
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π SIMILAR VOLUMES
A new pulsed-field-gradient spin-echo NMR spectrometer is remagic angle from the external field, and then the 1 H NMR ported which is specially designed for the measurement of slow linewidth was drastically narrowed because of the strongly aniand anisotropic self-diffusion by providing an intense an
Undesirable temperature gradients in a NMR sample tube are usually generated by an inappropiate temperature regulation system. We have shown that such convection effects can greatly distort the measurement of translational self-diffusion coefficients. The use of sample spinning helps to minimize suc
NMR methods (S. V. Dvinskikh et al., J. Magn. Reson. 142, 102-110 (2000) and S. V. Dvinskikh and I. FurΓ³, J. Magn. Reson. 144, 142-149 (2000)) that combine PGSE with dipolar decoupling are extended to polycrystalline solids and unoriented liquid crystals. Decoupling suppresses dipolar dephasing not