Nuclear magnetic resonance spectroscopy. Carbon-13 spectra of nicotine, quinine, and some Amaryllidaceae alkaloids.
D000470:Alkaloids; D002247:Carbon Isotopes; D009682:Magnetic Resonance Spectroscopy; D009538:Nicotine; D010847:Picolines; D011803:Quinine
D000470:Alkaloids; D002247:Carbon Isotopes; D010847:Picolines; D009538:Nicotine; D011803:Quinine