Method for improving selectivity in NMR experiments involving co

Details Method for improving selectivity in NMR experiments involving co Method for improving selectivity in NMR experiments involving co

1993-03-12

1994-06-28

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

G01V 300

Patent

active

053250583

ABSTRACT:
Coherence transformation selectivity is improved by using combinations of homogeneous RF pulses and "radial" RF pulses that have a uniform RF field strength throughout the sample, but whose phase (relative to the detection coil phase) has a spatial dependence such that all possible phase differences are equally represented throughout the sample. The use of radial pulses allows the spin coherences in the sample to evolve in spatial waves and the observation, or suppression, of a given coherence can be selected by using a receiver coil which has a predetermined symmetry relative to the symmetry of the spatial wave.

REFERENCES:
Current Aspects of Practical Two-Dimensional (2D) Nuclear Magnetic Resonance (NMR) Spectroscopy: Applications to Structure Elucidation, Richard Kriwacki and T. Phil Pitner Pharmaceutical Research, vol. 6, No. 7 (1989), pp. 531-554 (no month).
Gradient-Enhanced Spectroscopy: A Tutorial, Boban John et al. (1992), internal Bruker Instruments document, pp. 1-56 (no month).
Two-Dimensional NMR Spectroscopy: Background and Overview of The Experiments, Horst Kessler, et al., Angewandte Chemie, Int. English Edition, vol. 27, No. 4 (Apr. 1988) pp. 490-536.

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