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RSS FeedsMolecules, Vol. 25, Pages 473: NMR Relaxation Measurements on Complex Samples Based on Real-Time Pure Shift Techniques (Molecules)

 
 

23 january 2020 01:03:14

 
Molecules, Vol. 25, Pages 473: NMR Relaxation Measurements on Complex Samples Based on Real-Time Pure Shift Techniques (Molecules)
 


Longitudinal spin-lattice relaxation (T1) and transverse spin-spin relaxation (T2) reveal valuable information for studying molecular dynamics in NMR applications. Accurate relaxation measurements from conventional 1D proton spectra are generally subject to challenges of spectral congestion caused by J coupling splittings and spectral line broadenings due to magnetic field inhomogeneity. Here, we present an NMR relaxation method based on real-time pure shift techniques to overcome these two challenges and achieve accurate measurements of T1 and T2 relaxation times from complex samples that contain crowded NMR resonances even under inhomogeneous magnetic fields. Both theoretical analyses and detailed experiments are performed to demonstrate the effectiveness and ability of the proposed method for accurate relaxation measurements on complex samples and its practicability to non-ideal magnetic field conditions.


 
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