Correct determination of aluminium in Y zeolites by magic-angle spinning n.m.r. spectroscopy
β Scribed by Grobet, P. J.; Geerts, H.; Martens, J. A.; Jacobs, P. A.
- Book ID
- 120323957
- Publisher
- The Royal Society of Chemistry
- Year
- 1987
- Tongue
- English
- Weight
- 298 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0022-4936
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
C.p.-m.a.s. 13C-n.m.r. spectra and 13C spin-lattice relaxation times (I;) at room temperature have been measured for recrystallized samples of different polymorphs of amylose. Although the spectra of A-and B-amyloses in the dry state are very broad and ahnost structureless, the respective resonance
A method for estimation of aromatic content in oil shales is demonstrated. Magic-angle spinning at 2 kHz is shown to remove chemical shift anisotropy to a sufficient degree to resolve aromatic and aliphatic 13C n.m.r. spectral regions for a lithic oil shale specimen. The proton and carbon n.m.r. rel
## AJXXRACT The 13C cross-polarization, magic-angle spinning (CP-MAS) spectra of maltulose -Hz0 and anhydrous lactulose were examined at different applied magnetic and proton-decoupling fields B, and B,, respectively. Whereas the spectrum of lactulose was insensitive to these changes, that of malt