Three variously annulated isomeric pyranocoumarins 1, 2 and 3 have been examined using electron ionization and collisional mass spectroscopy. All the spectra showed diagnostic fragments that allowed characterization of the isomers. The best results were obtained using daughter‐ion spectra of selected parent ions. Copyright © 1990 Heyden & Son Limited
Characterization of isomeric pyranocoumarins by collision-induced tandem mass spectrometry.
GUIOTTO, ADRIANO
1990
Abstract
Three variously annulated isomeric pyranocoumarins 1, 2 and 3 have been examined using electron ionization and collisional mass spectroscopy. All the spectra showed diagnostic fragments that allowed characterization of the isomers. The best results were obtained using daughter‐ion spectra of selected parent ions. Copyright © 1990 Heyden & Son Limited
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