Download e-book for iPad: Dynamic Pulsed-Field-Gradient NMR by Geir Humborstad Sørland

By Geir Humborstad Sørland

ISBN-10: 3662444992

ISBN-13: 9783662444993

ISBN-10: 366244500X

ISBN-13: 9783662445006

Dealing with the fundamentals, thought and functions of dynamic pulsed-field-gradient NMR NMR (PFG NMR), this ebook describes the fundamental idea in the back of diffusion in heterogeneous media that may be mixed with NMR measurements to extract very important details of the procedure being investigated. this knowledge may be the floor to quantity ratio, droplet dimension distribution in emulsions, brine profiles, fats content material in meals stuff, permeability/connectivity in porous fabrics and clinical functions at the moment being constructed. along with concept and purposes it's going to give you the readers with history wisdom at the experimental set-ups, and most vital, take care of the pitfalls which are numerously found in paintings with PFG-NMR. the right way to learn the NMR information and a few very important simple wisdom at the should be defined, too.

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Extra info for Dynamic Pulsed-Field-Gradient NMR

Sample text

2 Solving the Diffusion Equation at Short Observation Times For particles confined in an arbitrary region as seen by the PFG NMR experiment, the boundary conditions used to find the Gaussian behavior of the diffusion propagator do not apply. 13) makes the equation difficult to solve in a straightforward manner. 4) [2]. 13). In evaluating the short-time expansion of G(r, r0, t) first a simplified solution is used followed by a perturbation expansion. The simplified Gaussian propagator G0 used here will the one with reflecting boundaries at a smooth surface.

Hürlimann, C. Flaum, A method for rapid characterization of diffusion. J. Magn. Reson. P. , Difftrain: a novel approach to a true spectroscopic single-scan diffusion measurement. J. Magn. Reson. J. S. , A PFG NMR experiment for accurate diffusion and flow studies in the presence of eddy currents. J. Magn. Reson. H. Sørland, D. Aksnes, L. Gjerdåker, A pulsed field gradient spin-echo method for diffusion measurements in the presence of internal gradients. J. Magn. Reson. L. Hahn, Spin echoes. Phys.

H. Sørland, B. Hafskjold, O. Herstad, A stimulated-echo method for diffusion measurements in heterogeneous media using pulsed field gradients. J. Magn. Reson. H. , Improved convection compensating pulsed field gradient spin-echo and stimulated-echo methods. J. Magn. Reson. R. Blinc, J. Pirš, I. Zupančič, Measurement of self-diffusion in liquid crystals by a multiplepulse NMR method. Phys. Rev. Lett. A. Jerschow, N. Müller, Convection compensation in gradient enhanced nuclear magnetic resonance spectroscopy.

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Dynamic Pulsed-Field-Gradient NMR by Geir Humborstad Sørland

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