RP-HPLC analysis of single, merging, and boiled together Lonicera japonica and Forsythia suspense.
- Author:
Li-Mei LIN
1
;
Zhi-Min WANG
;
Wei-Hao WANG
;
Chun LI
;
Ling-Li CAO
;
Xiao-Guang ZHANG
Author Information
- Publication Type:Journal Article
- MeSH: Chlorogenic Acid; analysis; Chromatography, High Pressure Liquid; methods; Drug Combinations; Forsythia; chemistry; Glycosides; analysis; Hot Temperature; Lonicera; chemistry; Plants, Medicinal; chemistry; Reproducibility of Results
- From: China Journal of Chinese Materia Medica 2007;32(21):2240-2243
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVEUtilizing RP-HPLC analysis of single, merging and simultaneously boiled Lonicera japonica and Forsythia suspense to find out their identity and difference.
METHODSamples were separated by Alltech-C18 column (4. 6 mm x 250 mm, 5 microm) with a mixture solution of acetonitrile-water (containing 0.2% ethanoic acid) as mobile phase, 1.0 mL x min(-1) as flow-rate, 280 nm as detected wave-length, room temperature as temperature of column, 10 microL as injected volume.
RESULTThe linear ranges of chlorogenic acid and forsythoside A were 0.980-9.800 microg (r = 0.999 9) and 0.972-9. 720 microg (r = 0.999 9), respectively. The average recoveries of chlorogenic acid and forsythoside A were 99.85% (n = 6, RSD 2.0%) and 100.87% (n = 6, RSD 1.6%), respectively. Major peaks were confirmed to the two component herbs, contents of chlorogenic acid and forsythoside A were determinated, ingredients were represented by following peaks were compared qualitatively: peaks k, m, n: L. japonica > merging sample > boiled sample; peaks g, h: Forsythia suspense > merging sample > boiled sample; peaks d, e, i: boiled sample > L. japonica, boiled sample > merging sample.
CONCLUSIONDifference and identities among 4 experimental samples of RP-HPLC separations show that Yinqiao, L. japonica and F. suspense' substances are difference and identities, which offered direction for investigating further the topic-pharmacodynamic substance of Yinqiao, provided increasing experimental evidence for clinic medicine and pharmaceutics and supplied reference for the complex prescription of traditional Chinese medicine.