13C CP/MAS NMR Spectroscopic Characterization of Native Silk Fibers
β Scribed by Zhang, Wei; He, Jian Xin; Wang, Yan
- Book ID
- 125967281
- Publisher
- Trans Tech Publications, Ltd.
- Year
- 2011
- Tongue
- English
- Weight
- 856 KB
- Volume
- 175-176
- Category
- Article
- ISSN
- 1662-8958
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## Abstract ^13^C CP/MAS NMR spectra were recorded to characterize the solidβstate conformation of flavonoids: galangin, kaempferol, quercetin, myricetin, chrysin, apigenin, luteolin, acacetin, hesperetin and naringenin. Correct assignment of the signals in solutionβstate spectra (using APT, HSQC a
A method for temperature calibration of CP/MAS NMR probes and their temperature controllers is described that relies upon known phase changes in the compounds adamantane, d-camphor, pivalic acid and DABCO. The method appears to give a convenient and reliable calibration over the temperature range cu