Gas-liquid chromatographic and mass spectrometric identification of anthocyanidins

✍ Scribed by E. Bombardelli; A. Bonati; B. Gabetta; E.M. Martinelli; G. Mustich; B. Danieli

• Publisher: Elsevier Science
• Year: 1976
• Tongue: English
• Weight: 459 KB
• Volume: 120
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(01)99002-8

✦ Synopsis

A method is described for the identification of anthocyanidins by gas-liquid chromatography and mass spectrometry. Anthocyanidins, when treated with trimethylchlorosiiane and hexamethyldisilazme, yield volatile compounds whose nature is discussed on the basis of their high-resolution mass spectra, obtained by a direct inlet system, and nuclear magnetic resonance spectra. A facile thermal elimination of trimethyisilanol occurs if these products are analyzed by gas-liquid chromatographymass spectrometry, with the consequent formation of quinoline derivatives. The latter give rise to well-separated gas chromatographic peaks and show fragmentation patterns which can be employed to define the structure of anthocyanidins.