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Analysis of precocenes in the essential oil of Ageratum spp. by reverse‐phase high‐performance liquid chromatography
Author(s) -
Sharma Kiran,
Sharma Om P.
Publication year - 2001
Publication title -
phytochemical analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 72
eISSN - 1099-1565
pISSN - 0958-0344
DOI - 10.1002/pca.587
Subject(s) - ageratum conyzoides , chemistry , chromatography , high performance liquid chromatography , elution , acetonitrile , gradient elution , botany , weed , biology
The chromenes precocene I (7‐methoxy‐2,2‐dimethylchromene) and precocene II (6,7‐methoxy‐2,2‐dimethylchromene) extracted from Ageratum houstonianum and A. conyzoides have been analysed by reverse‐phase high‐performance liquid chromatography. Separation was achieved using a C 18 column eluted with a linear gradient of acetonitrile and water. Precocenes I and II in the essential oils were determined to be 270 ± 23 and 482 ± 34 mg/mL in A. houstonianum , and 687 ± 21 and 20 ± 2 mg/mL in A. conyzoides . Copyright © 2001 John Wiley & Sons, Ltd.