✦ LIBER ✦
P-Type gradient-enhanced COSY experiments show lower t1 noise than N-type
✍ Scribed by Timothy J. Horne; Gareth A. Morris
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 257 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
Many of the perturbations that lead to noise in 2D NMR spectroscopy cause Ñuctuations in the relative phases t 1 of pulses and coherences. Because the sensitivity of the phase of a coherence to changes in the phase of a pulse depends on the change of coherence order, P-type signals in homonuclear correlation experiments are insensitive to errors in the phase of the mixing pulse, and hence they show less noise than N-type signals. This e †ect is t 1 illustrated for the gradient COSY experiment.