Acquisition times, relaxation rates and solvent and temperature effects as sensitivity parameters for quadrupolar nuclei
✍ Scribed by Ioannis P. Gerothanassis
- Book ID
- 102555735
- Publisher
- John Wiley and Sons
- Year
- 1983
- Tongue
- English
- Weight
- 350 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The relationship between the signal‐to‐noise ration and T~2~ and, hence, the line width of a resonance for quadrupolar nuclei, with particular reference to ^17^O at natural abundance, is discussed. Emphasis is placed on the importance of choosing appropriate FID acquisition times related to the T~2~ values or resonance widths of the quadrupolar nuclei. When this is feasible (i.e. when the principal resonances in a spectrum have similar widths) the signal‐to‐noise ratio attainable against a flat base line in a given time of spectral accumulation is independent of resonance line width. Although resolution improvements can be made by using appropriate solvents or elevated sample temperatures, the sensitivity has been to be strongly dependent on the acquisition parameters used.