ple-pulse sequences for high-resolution solid-state NMR It is generally accepted that heteronuclear-correlation spectroscopy of biological systems is quite impractical, if spectroscopy in solids requires the application of multiplenot entirely impossible. pulse techniques to achieve sufficient line
High-Field High-Speed MAS Resolution Enhancement in 1H NMR Spectroscopy of Solids
β Scribed by A Samoson; T Tuherm; Z Gan
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 122 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0926-2040
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π SIMILAR VOLUMES
Conducting dielectric samples are often used in high-resolution unwanted signals arising from inaccurate flip angles or other experiments at high field. It is shown that significant amplitude effects. Often phase cycles are used to select particular coand phase distortions of the RF magnetic field m
On the other hand, the resolution in the upfield region is not In this Communication, we demonstrate that the use of optimal, due to a combination of strong homonuclear dipolar frequency-switched Lee-Goldberg irradiation during the couplings and small shift dispersion for most aliphatic proproton ev
## Abstract Twoβdimensional DQ ^1^H MAS NMR has been used the investigate the local structure of a surfactantβtemplated silicate thin film prepared from adding 4% polyoxyethylene(10) cetyl ether to an acidic TEOS silica sol. A close spatial contact between the surfactant and the silicate present in
Surgical specimens from 22 patients with infiltrating ductal carcinoma of the breast were analyzed by high-resolution 1H NMR spectroscopy at 80 and 300 MHz. Results were compared with those obtained from 9 benign (proliferative dysplasia without atypia) breast samples. NMR spectra at 80 MHz showed w