## Abstract T~2~ measurements of ^31^P NMR signals of ATP using the Hahn 90Β°β180Β° spinβecho sequence imply difficulties whenever the 180Β° pulse angle is not completely perfect. The reason for this finding is the crucial influence of the __J__ βcouplings of the ATP signals which result in intensity
31P NMR measurements of T2 relaxation times of ATP with surface coils: Suppression of J modulation
β Scribed by J. P. Albrand; M. F. Foray; M. Decorps; C. Remy
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 282 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0740-3194
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β¦ Synopsis
The efficiency of selective refocusing pulses to suppress J modulation of spin echoes when using the surface-coil technique has been investigated. 3'P T, values obtained for ATP by the HAHN spin-echo method remain in good agreement when the standard refocusing pulse is replaced by selective pulses based on the DANTE excitation method.
π SIMILAR VOLUMES
A new type of loop-gap resonator, which because of its topology is called a "sectorial resonator," is described in considerable analytical detail. It was used for 31P NMR of the livers of two human adult normal volunteers. An effective strategy for suppression of signals from surface tissue was deve