Pulse sequences for high-resolution diffusion-ordered spectroscopy (HR-DOSY)
✍ Scribed by Michelle D. Pelta; Hervé Barjat; Gareth A. Morris; Adrian L. Davis; Stephen J. Hammond
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 261 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
Six pulse sequences are described, all based on the stimulated echo, for use in high resolution di †usion-ordered spectroscopy (HR-DOSY). HR-DOSY requires spectra with clean baselines, pure phases and lineshapes that are independent of Ðeld gradient pulse amplitude. Lineshape problems arising from the static Ðeld perturbations caused by Ðeld gradient pulses and phase errors caused by zero quantum coherence in strongly coupled spin systems are discussed, and the performance of the six sequences is compared. Pulse sequences which use balanced pairs of antiphase Ðeld gradient pulses show signiÐcant advantages.