Physics, mathematics, and technology

2012 Issue №4

Back to the list Download the article

The method of multipulse registration of nuclear magnetic resonance signal in unhomogeneous magnetic field

Pages
118-125

Abstract

This paper presents the results of a series of experiments whose purpose was to investigate the possible use of composite pulses to improve the homogeneity of the magnetic field and study the possibility of identifying compounds based on the relaxation characteristics of the NMR signals.

Reference

1. Хаусен К. Х., Кальбитцер Х. Р. ЯМР в медицине и биологии. Киев, 1993.
2. Эрнст Р., Боденхаузен Дж., Вокаун А. ЯМР в одном и двух измерениях. М., 1990.
3. Levitt Group, School of Chemistry, University of Southampton, UK. URL : http: //www.mhl.soton.ac.uk/public/Main/research/topics/CompositePulses/index.html
4. Blumich B., Casanova F., Appelt S. NMR at low magnetic fields // Chemical Physics Letters. 2009. N 477. P. 231—240.
5. Sakellariou D., Meriles A., Moule A., Pines A. Variable rotation composite pulses for high resolution nuclear magnetic resonance using inhomogeneous magnetic and radiofrequency fields // Chemical Physics Letters. 2002. N 363. P. 25—33.
6. Shaka A. J., Freeman R. Composite pulses with dual compensation // Journal of Magnetic Resonance. 1983. N 55. P. 487—493.
7. Levitt M. H., Freeman R. NMR Population Inversion Using a Composite Pulse // Journal of Magnetic Resonance. 1979. N 33. P. 473.
8. Levitt M. H. Composite Pulses // Encyclopedia of Magnetic Resonance. 1996. P. 1396—1410.
9. Sakellariou D., Meriles C. A., Pines A. Advances in ex-situ Nuclear Magnetic Resonance // C. R. Physique. 2004. N 5. P. 337—347.
10. Topgaard D., Sakellariou D., Pines A. NMR spectroscopy in inhomogeneous B0 and B1 fields with non-linear correlation // Journal of Magnetic Resonance. 2005. N 175. P. 1—10.
11. Thayer A. M., Pines A. Composite pulses in zero-field NMR // Journal of Magnetic Resonance. 1986. N 70. P. 518—522.
12. King J. D., Los Santos A. de. Development and Evaluation of Magnetic Resonance Technologies, Particularly NMR, for Detection of Explosives // Applied Magnetic Resonance. 2004. N 25. P. 535—565.
13. Derome A. E. Modern NMR Technique for Chemical Research // Pergamon. 1990. N 26. P. 1192—1195.
14. Application Note 30.An Introduction to Analytical Applications of Low Resolution NMR. 1987; S. A. Jones, Routine Determination of the Total Fat Content of  Chocolate by Pulsed NMR Using the Minispec Bruker Application Notes 14; S. A. Jones, Determination of the Water Content of Glucose by Pulsed NMR, Bruker Application Notes 15; S. A. Jones, Determination of the Oil Content of Paraffin by
means of Pulsed NMR. Application Note 22. URL : www. bruker. de.