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nmr pgse self diffusion  (Bruker Corporation)
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Bruker Corporation nmr pgse self diffusion
( a ) 2 H <t>NMR</t> spectra recorded during the recovery of the residual quadrupolar splitting ν Q after a 90 ° rotation of a previously equilibrated clay sample; ( b ) Concentration variations of the limiting equilibrium residual quadrupolar splitting ν Q measured at B 0 = 2.351 and 8.465 Tesla for the Size2 clay samples and at B 0 = 8.465 Tesla for the Size3 clay samples. Additional measurements are performed at B 0 = 8.465 Tesla for the Size2 samples in the presence of salt ( I = 10 − 4 M); ( c ) Determination of the various components <t>of</t> <t>self-diffusion</t> tensor D of the water molecules in the Size2 clay sample (c = 21.5 g/L) measured by the 2 H NMR <t>PGSE</t> method at B 0 = 2.351 Tesla. The PGSE measurements are performed after equilibration of the clay platelet orientation in the static magnetic field B 0 parallel to the e → z director; ( d ) Concentration variation of the characteristic time t c measured at B 0 = 2.351 and 8.465 Tesla for the Size2 clay samples. Reprinted with permission from . Copyright (2010) American Chemical Society.
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( a ) 2 H NMR spectra recorded during the recovery of the residual quadrupolar splitting ν Q after a 90 ° rotation of a previously equilibrated clay sample; ( b ) Concentration variations of the limiting equilibrium residual quadrupolar splitting ν Q measured at B 0 = 2.351 and 8.465 Tesla for the Size2 clay samples and at B 0 = 8.465 Tesla for the Size3 clay samples. Additional measurements are performed at B 0 = 8.465 Tesla for the Size2 samples in the presence of salt ( I = 10 − 4 M); ( c ) Determination of the various components of self-diffusion tensor D of the water molecules in the Size2 clay sample (c = 21.5 g/L) measured by the 2 H NMR PGSE method at B 0 = 2.351 Tesla. The PGSE measurements are performed after equilibration of the clay platelet orientation in the static magnetic field B 0 parallel to the e → z director; ( d ) Concentration variation of the characteristic time t c measured at B 0 = 2.351 and 8.465 Tesla for the Size2 clay samples. Reprinted with permission from . Copyright (2010) American Chemical Society.

Journal: International Journal of Molecular Sciences

Article Title: A Multi-Scale Study of Water Dynamics under Confinement, Exploiting Numerical Simulations in Relation to NMR Relaxometry, PGSE and NMR Micro-Imaging Experiments: An Application to the Clay/Water Interface

doi: 10.3390/ijms21134697

Figure Lengend Snippet: ( a ) 2 H NMR spectra recorded during the recovery of the residual quadrupolar splitting ν Q after a 90 ° rotation of a previously equilibrated clay sample; ( b ) Concentration variations of the limiting equilibrium residual quadrupolar splitting ν Q measured at B 0 = 2.351 and 8.465 Tesla for the Size2 clay samples and at B 0 = 8.465 Tesla for the Size3 clay samples. Additional measurements are performed at B 0 = 8.465 Tesla for the Size2 samples in the presence of salt ( I = 10 − 4 M); ( c ) Determination of the various components of self-diffusion tensor D of the water molecules in the Size2 clay sample (c = 21.5 g/L) measured by the 2 H NMR PGSE method at B 0 = 2.351 Tesla. The PGSE measurements are performed after equilibration of the clay platelet orientation in the static magnetic field B 0 parallel to the e → z director; ( d ) Concentration variation of the characteristic time t c measured at B 0 = 2.351 and 8.465 Tesla for the Size2 clay samples. Reprinted with permission from . Copyright (2010) American Chemical Society.

Article Snippet: 1 H NMR PGSE self-diffusion and magnetic resonance imaging (MRI) measurements are performed on a Bruker DSX100 spectrometer operating at a static magnetic field B 0 of 2.351 Tesla.

Techniques: Concentration Assay, Diffusion-based Assay

Schematic view of the pulse sequence used to perform pulsed gradient spin-echo (PGSE-NMR) attenuation measurements. Details on the time delays, pulse durations and strengths of the magnetic field gradients G are given in the text. Reprinted with permission from . Copyright (2018) American Chemical Society.

Journal: International Journal of Molecular Sciences

Article Title: A Multi-Scale Study of Water Dynamics under Confinement, Exploiting Numerical Simulations in Relation to NMR Relaxometry, PGSE and NMR Micro-Imaging Experiments: An Application to the Clay/Water Interface

doi: 10.3390/ijms21134697

Figure Lengend Snippet: Schematic view of the pulse sequence used to perform pulsed gradient spin-echo (PGSE-NMR) attenuation measurements. Details on the time delays, pulse durations and strengths of the magnetic field gradients G are given in the text. Reprinted with permission from . Copyright (2018) American Chemical Society.

Article Snippet: 1 H NMR PGSE self-diffusion and magnetic resonance imaging (MRI) measurements are performed on a Bruker DSX100 spectrometer operating at a static magnetic field B 0 of 2.351 Tesla.

Techniques: Sequencing

Water self-diffusion propagators measured within the saturated clay sample. More details on the selected diffusion directors e i → are given (see text above), leading to the components of the self- diffusion tensor D 1 = 1.041 × 10 − 9 m 2 /s, D 2 = 1.062 × 10 − 9 m 2 /s, D 3 = 0.918 × 10 − 9 m 2 /s, D 4 = 1.067 × 10 − 9 m 2 /s, D 5 = 0.991 × 10 − 9 m 2 /s, and D 6 = 0.992 × 10 − 9 m 2 /s. Reprinted with permission from . Copyright (2018) American Chemical Society.

Journal: International Journal of Molecular Sciences

Article Title: A Multi-Scale Study of Water Dynamics under Confinement, Exploiting Numerical Simulations in Relation to NMR Relaxometry, PGSE and NMR Micro-Imaging Experiments: An Application to the Clay/Water Interface

doi: 10.3390/ijms21134697

Figure Lengend Snippet: Water self-diffusion propagators measured within the saturated clay sample. More details on the selected diffusion directors e i → are given (see text above), leading to the components of the self- diffusion tensor D 1 = 1.041 × 10 − 9 m 2 /s, D 2 = 1.062 × 10 − 9 m 2 /s, D 3 = 0.918 × 10 − 9 m 2 /s, D 4 = 1.067 × 10 − 9 m 2 /s, D 5 = 0.991 × 10 − 9 m 2 /s, and D 6 = 0.992 × 10 − 9 m 2 /s. Reprinted with permission from . Copyright (2018) American Chemical Society.

Article Snippet: 1 H NMR PGSE self-diffusion and magnetic resonance imaging (MRI) measurements are performed on a Bruker DSX100 spectrometer operating at a static magnetic field B 0 of 2.351 Tesla.

Techniques: Diffusion-based Assay