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Identification of Isoquinoline alkaloids in crude extracts by high temperature gas chromatography-mass spectrometry

✍ Scribed by Alberto S. Pereira; Ana Claudia F. Amaral; Roderick A. Barnes; Jari N. Cardoso; Francisco R. Aquino Neto

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
72 KB
Volume
10
Category
Article
ISSN
0958-0344

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✦ Synopsis

Crude ethanol extracts of leaves of Croton (Euphorbiaceae) species (C. hemiargyreus var. gymnodiscus, C. hemiargyreus var. hemiargyreus and C. echinocarpus) were analysed using on-column injection high temperature gas chromatography coupled with mass spectrometry. Several isoquinoline alkaloids were identified, including isocorydine, corydine, glaucine and laurelliptine as the principal constituents. The cold on-column technique proved to be appropriate for injection of these compounds. The technique is shown to be a valuable tool and an alternative technique to classical phytochemical procedures permitting the fast analysis of alkaloid mixtures without the need for (extensive) fractionation and derivatisation.

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