Download Dynamic Pulsed-Field-Gradient NMR by Geir Humborstad Sørland PDF

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By Geir Humborstad Sørland

Dealing with the fundamentals, conception and purposes of dynamic pulsed-field-gradient NMR NMR (PFG NMR), this booklet describes the fundamental thought at the back of diffusion in heterogeneous media that may be mixed with NMR measurements to extract vital info of the approach being investigated. this knowledge may be the floor to quantity ratio, droplet dimension distribution in emulsions, brine profiles, fats content material in foodstuff stuff, permeability/connectivity in porous fabrics and scientific functions presently being built. in addition to conception and purposes it is going to give you the readers with historical past wisdom at the experimental set-ups, and most crucial, care for the pitfalls which are numerously found in paintings with PFG-NMR. the best way to examine the NMR information and a few vital easy wisdom at the should be defined, too.

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Spectrosc. W. H. Sørland, K. Zick, J. Sjoblom, Quantitative recovery ordered (Q-ROSY) and diffusion ordered spectroscopy using the spoiler recovery approach. Diffus. Fundam. T. G. S. Price, Steady state effects in PGSE NMR diffusion experiments. Chem. Phys. Lett. J. D. J. Fordham, A rapid measurement of T1/T2: the DECPMG sequence. J. Magn. Reson. L. Venturi, K. Wright, B. Hills, Ultrafast T1–T2 relaxometry using FLOP sequences. J. Magn. Reson. 205(2), 224–234 (2010) 48. R. Durret, Probability Theory and Examples (4th ed, Cambridge University Press, 2010), p.

This is also true when ρ and R0 are present simultaneously. The smallest dimensionless term that can be derived from the parameters is equivalent to the fraction of particles sensing the surface. 18) describing the early observation time departure of the measured diffusion coefficient in a porous medium, it can be seen that a square root of time dependency on the lowest order correction term to the bulk diffusion coefficient exists. Most important is that this correction term does not involve the product of ρ and S/V, only the surface to volume ratio.

J. D. J. Fordham, A rapid measurement of T1/T2: the DECPMG sequence. J. Magn. Reson. L. Venturi, K. Wright, B. Hills, Ultrafast T1–T2 relaxometry using FLOP sequences. J. Magn. Reson. 205(2), 224–234 (2010) 48. R. Durret, Probability Theory and Examples (4th ed, Cambridge University Press, 2010), p. D. Bain, Coherence levels and coherence pathways in NMR. A simple way to design phase cycling procedures. J. Magn. Reson. (1969) 56(3), 418–427 (1984) Chapter 2 Observation Time Dependent Diffusion Measurements in Heterogeneous Media by PFG NMR Abstract Fick’s law for diffusion within a homogeneous system is solved, ­followed by taking into account the impact of restricting geometries.

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