Method of improving the resolution in two-dimensional heteronucl

Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

324300, G01V 300

Patent

active

059260238

ABSTRACT:
The invention concerns a two-dimensional heteronuclear correlation spectroscopy method for the measurement of solid state NMR samples. The nuclear spins are decoupled in the evolution interval by means of a FSLG-RF pulse sequence irradiated in the proton frequency band. Since this sequence may be very short compared to the ones hitherto used, and it is not necessary to irradiate simultaneously radio frequency in the area of the S-nuclei, the method is suitable in particular for high rotational velocities of the sample and high magnetic fields, where it effects a considerable improvement of the resolution.

REFERENCES:
patent: 5260656 (1993-11-01), Cory
patent: 5327087 (1994-07-01), Hafner et al.
patent: 5327088 (1994-07-01), Pipe
Journal of Magnetic Resonance Series B 107, pp. 88-90 (1995).
A.Ramamoorthy et al.: "Three-Dimensional Solid-State NMR Experiment That Correlates the Chemical Shift and Dipolar . . . ".
Chemical Physics Letters, vol. 89, No. 5, pp. 363-367 (Jul. 1982) "Heteronuclear Solid-State Correlation Spectroscopy".
Chemical Physics Letters, vol.100, No. 4, pp. 305-310 (Sep. 1983) "Heteronuclear Correlation Spectroscopy in Rotating Solids".
Chemical Physics Letters, vol.155, No.4,5 pp. 341-346 (1989) "Frequency-Switched Pulse Sequences: Homonuclear Decoupling and Dilute Spin NMR in Solids".
Journal of Magnetic Resonance A 120, pp. 274-277 (1996) "High Magnetic Field for Enhanced Proton Resolution in High-Speed CP/MAS Heteronuclear 1H-13C Dipolar-Correlation Spectroscopy".
Journal of Magnetic Resonance A 121, pp. 114-120 (1996) "Plane Selection in Indirect MARF Solid-State Imaging".
Journal of Magnetic Resonance A 104, pp. 334-339 (1993) "Variable-Amplitude Cross-Polarization MAS NMR".
Journal of Chemical Physics 103 (1995), pp. 6951-6958 (1995) "Heteronuclear Decoupling in Rotating Solids".
Ray Freeman: A Handbook of Nuclear Magnetic Resonance, Longman Scientific & Technical (1990), pp. 137-141, and pp. 151-155.
Journal of Magnetic Resonance, vol. 95, pp. 184-190 (1991) "WIMSE, a New Spectral Editing Technique for CPMAS Solid-State NMR".
Biochemical and Biophysical Research Communications, vol. 113, No. 3 (1983), pp. 967-972 "Application Of Phase Sensitive Two-Dimesional Correlated Spectroscopy (COSY) For Measurements . . . ".

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of improving the resolution in two-dimensional heteronucl does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of improving the resolution in two-dimensional heteronucl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of improving the resolution in two-dimensional heteronucl will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1324746

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.