Quantitative detection of adulterated olive oil by Raman spectroscopy and chemometrics
β Scribed by Xiao-Fang Zhang; Ming-Qiang Zou; Xiao-Hua Qi; Feng Liu; Cheng Zhang; Feng Yin
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 231 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0377-0486
- DOI
- 10.1002/jrs.2933
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π SIMILAR VOLUMES
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
Near-infrared (785 nm) excitation was used to obtain Raman spectra from a series of 33 solid mixtures containing cocaine, caffeine and glucose (9.8-80.6% by weight cocaine), which were then analysed using chemometric methods. Principal component analysis of the data was employed to ascertain what fa