The presence of spinning sidebands can severely compromise pression will not be used, the first criterion is satisfied. the detection of low molarity analytes. Spinning sidebands have Modern NMR spectrometers, appropriately configured, traditionally been minimized by improving the magnetic field hoh
Spin-pattern recognition in high-resolution proton NMR spectroscopy
โ Scribed by Malcolm H. Levitt; R.R. Ernst
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 509 KB
- Volume
- 100
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
Techniques are introduced for the recogition of specific spin patterns in complex overlappins proton NhlR spectra. They are based on the efficient and selective excitation of high-order multiple quantum coherence in _systcms of specified coupling network topology, and allow the suppression of undesired spin patterns..
๐ SIMILAR VOLUMES
The NMR double-quantum response to a three-pulse sequence of dipolar coupled spin-l/2 pairs in powder samples spinning at the magic angle is investigated for arbitrary spinning frequencies. It is shown that double-quantum spinning sideband patterns result from the rotor modulation of the dipolar Ham