Determination of 14 chemical constituents in the traditional Chinese medicinal preparation Huangqin-Tang by high performance liquid chromatography

作者：Zuo F; Zhou ZM^*; Liu ML

来源：Biological & Pharmaceutical Bulletin, 2001, 24(6): 693-697.

DOI：10.1248/bpb.24.693

• Huangqin-Tang
• HPLC
• 14 constituents
• quantitative determination

The high performance liquid chromatographic (HPLC) method for the identification and determination of baicalin (BG), wogonoside (WG), oroxylin-A-glucoside (OG), baicalein (B), wogonin (W), orxylin-A (O), paconiflorin (PF), glycyrrhizic acid (GL), glycyrrhetinic acid (GA), liquiritin (LG), isoliquirition (ILG), liquiritigenin (L), isoliquiritigenin (IL) and ononin (ON) in Huangqin-Tang (
[GRAPHICS]
was established. The samples were separated with a Wakosil C-18 column (4.6 x 150 mm) by linear gradient elution using A (MeOH-HAC 100: 1, v/v)-B (Water-HAC 100: 1, v/v) (0 min, 30 :70: 15 min, 40:60; 30 min, 60:40; 45 min, 80:20; 60 min, 100:0) as the mobile phase at a flow-rate of 1.0 ml/min. The detection was by diode-array UV/Vis detector (DAD), and the wavelength was set at the range of 200--400 nm. Satisfactory results were obtained within 60 min for the simultaneous determination of the 14 constituents, The repeatability (RSD) of the method was generally less than 2% (n=5, interday and intraday). The recovery of BG was 96.9 +/-1.71, WG was 98.9 +/-2.99, PF was 99.7 +/-0.52, LG was 95.3 +/-2,67, GL was 96.7 +/-3.44, and GA was 94.8 +/- 4.16, respectively.

• 出版日期2001-6
• 单位中国中医科学院