Sensitivity gain in a progressive-saturation selective population inversion NMR experiment

A pulsed NMR experiment is described which combines the principles of progressive-saturation and selective population inversion. A considerable sensitivity gain is obtained for the X resonances of an AX spin system with T 1,A < T 1,x after inversion of the populations of the upper- and lower-ener...

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Bibliographic Details
Published in:Journal of magnetic resonance (1969) 1977-01, Vol.28 (1), p.53-61
Main Authors: Pachler, K.G.R, Wessels, P.L
Format: Article
Language:English
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Summary:A pulsed NMR experiment is described which combines the principles of progressive-saturation and selective population inversion. A considerable sensitivity gain is obtained for the X resonances of an AX spin system with T 1,A < T 1,x after inversion of the populations of the upper- and lower-energy levels of an A transition. The signal-to-noise ratio observed for the quarternary carbon atom of 1,1,2-trichloroethylene, for instance, improved by a factor of 12.4, corresponding to a possible time saving of well over two orders of magnitude in the recording of spectra of comparable signal-to-noise ratios.
ISSN:0022-2364
1557-8968
DOI:10.1016/0022-2364(77)90255-4