Determination of flavone for Scutellaria baicalensis from different areas by HPLC.
- Author:
Li-xin YANG
1
;
Dai LIU
;
Xue-feng FENG
;
Shu-lian CUI
;
Jing-yu YANG
;
Xiao-jun TANG
;
Xi-rong HE
;
Ju-fu LIU
;
Shi-lin HU
Author Information
- Publication Type:Journal Article
- MeSH: Chromatography, High Pressure Liquid; Flavanones; Flavonoids; analysis; Plant Roots; chemistry; Plants, Medicinal; chemistry; Quality Control; Scutellaria baicalensis; chemistry
- From: China Journal of Chinese Materia Medica 2002;27(3):166-170
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo describe the difference between native and nonative herbs by determining contents of seven kinds of flavone for twenty-five samples from seventeen areas.
METHODSHPLC. Fluid phase: MEOH-H2O-CH3COOH(ICE) (41:59:0.2) and (50:50:0.2). Detection wavelength: 275.
RESULTSThe contents of baicalin are 6%-9%, wogenin are 2%-8%, baicalein are 0.1%-1.6%, neobaicalein are 0.01%-0.2%, wogonin are 0.01%-0.3%, visidulin and oroxylin are trace amounts or undetected.
CONCLUSIONThe native and nonative herbs have no distinct differce in absolute component ratio. The ratio of baicalin and wogenin is under three. The ratio of baicalin and baicalein, baicalin and wogonin is between twenty and fifty.
