A new method to estimate the oil and gas potentials of coals and kerogens by solid state 13C NMR spectroscopy
✍ Scribed by Qin Kuangzong; Chen Deyu; Li Zhanguang
- Book ID
- 116094276
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 546 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0146-6380
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract Solid‐state NMR spectroscopy was applied to the analysis of melanins prepared by peroxidase‐H~2~O~2~ oxidation of dopamines specifically ^13^C labelled in the α‐ or β‐side chain positions. A surprisingly diverse pattern of signals indicated the presence of uncyclized dopamine and noradr
We have recorded high-resolution l3C-nmr spectra of collagen fibrils in the solid state by the cross-polarization-magic-angle-spinning (CP-MAS) method and analyzed the spectra with reference to those of collagenlike polypetides. We used two kinds of model polypeptides to obtain reference 13C chemica
## Abstract The complete assignment of cholesterol ^1^H and ^13^C NMR resonances in a lipid bilayer environment (L~α~‐dimyristoylphosphatidylcholine/cholesterol 2:1) has been obtained by a combination of 1D and 2D MAS NMR experiments: ^13^C spectral editing, ge‐HSQC, dipolar HETCOR and J‐based HETC