TY  - BOOK
AU  - Pereira,A.S.
AU  - Amaral,A.C.F.
AU  - Barnes,R.A.
AU  - Cardoso,J.N.
AU  - Aquino Neto,F.R.
TI  - Identification of Isoquinoline Alkaloids in Crude Extracts by High Temperature Gas Chromatography-Mass Spectrometry
KW  - COLD ON-COLUMN INJECTOR
KW  - HIGH TEMPERATURE GAS CHROMATOGRAPHY
KW  - ALKALOIDS
KW  - EUPHORBIACEAE
KW  - CROTON
N2  - 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
UR  - https://drive.google.com/file/d/1Ph-CjW-MUAJoOahcT5jCBB4iV_CVaKgs/view?usp=drivesdk
ER  -