Simple 13C-NMR methods for quantitative determinations of polyflavonoid tannin characteristics
โ Scribed by D. Thompson; A. Pizzi
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 461 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0021-8995
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๐ SIMILAR VOLUMES
Induced Accelerated Autocondensation of Polyflavonoid Tannins for Phenolic Polycondensates. 111. CP-MAS 13C
## Abstract Nuclear magnetic resonance (NMR) spectroscopy is applied to measure the highโfield (500 MHz) ^13^C spectra at natural abundance in olive oil samples in order to ascertain the suitability of NMR for discriminating oils from different Italian geographical areas of production and, in parti
The polarization transfer method DEPT (distortionless enhancement by polarization transfer) was employed to set up a quantitative method to detect olive oil adulteration by seed oils, in particular soybean oil. The DEPT pulse sequence promotes the transfer of polarization from "concentrate spins = 1