Principal components analysis as a tool for identity control using near-infrared spectroscopy
β Scribed by Roman Bossart; Holger Keller; Hanspeter Kellerhals; Joachim Oelichmann
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 291 KB
- Volume
- 661-662
- Category
- Article
- ISSN
- 0022-2860
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## Abstract ^13^C NMR shifts of 54 chalcones and their thiophene and furan analogues are analyzed by principal component analysis. Thus, a mathematical model is derived for the variation of the carbon shifts in each of seven classes. Two component models are found to be adequate by crossβvalidation