Journal
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
Volume 43, Issue 3, Pages 1000-1006Publisher
ELSEVIER
DOI: 10.1016/j.jpba.2006.09.033
Keywords
RP-HPLC; Forsythia suspensa; determination; quality control
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A high performance liquid chromatographic method was developed to simultaneously determine the 12 major constituents of Forsythia suspensa, namely R-suspensaside, S-suspensaside, S-suspensaside methyl ether, (+)-pinoresinol-p-D-glucoside, forsythiaside, (+)-epipinoresinol-4'-O-glucoside, suspensaside A, rutim, phillyrin, (+)-pinoresinol, (+)-epipinoresinol and phillygenin. The HPLC assay was performed on a Zorbax XDB C-18 column with gradient elution of methanol and 0.3% aqueous acetic acid within 55 min. The detection wavelength was 280 nm. All the compounds showed good linearity (r(2) > 0.9998). The method was reproducible with intra- and inter-day variation less than 3%. The recovery of the assay was in the range of 91.2-104.9%. The method was successfully applied to the quantification of 12 constituents in 33 F suspensa samples. The results indicated that the developed assay could be considered as a suitable quality control method for F suspensa. (c) 2006 Elsevier B.V. All rights.
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