In this study, the analytical method was developed for the simultaneous analysis of the two components of phthalide group, those are ligustilide and butylidene phthalide, and the three components of furocoumarin group, those are psoralen, xanthotoxin and bergapten, in angelicae leaves and stems using high performance liquid chromatography (HPLC). The components in angelicae leaves and stems tracted with methyl alcohol using an ultrasonic bath. HPLC was performed on an Inertsil ODS-3 column (4 μm, 4.6 mm i.d.×150 mm) with ultraviolet detection set to 240 nm, using H
2O-acetonitrile in the mobile phase. The measurement of the concentration of each component in angelicae leaves and stems by the above mentioned method showed the following results: ligustilide 1678〜12363 μg/g, butylidene phthalide 199.3〜362.5 μg/g, xanthotoxin 65.4〜271.0 μg/g and bergapten 137.4〜299.3 μg/g, and psoralen was under the limit of quantification.
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