Determinatin of Stachydrine Hydrochloride in Fresh Medicinal Material of Herba Leonuri by HPLC
- VernacularTitle:HPLC法测定鲜益母草中盐酸水苏碱含量
- Author:
Jiangjian REN
;
Jianzhong XU
;
Zhi'An WANG
;
- Publication Type:Journal Article
- Keywords:
Herba Leonuri;
Stachydrine hydrochloride;
HPLC
- From:
Traditional Chinese Drug Research & Clinical Pharmacology
1993;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a HPLC method for the separation and determination of stachydrine hydrochloride in fresh medicinal material of Herba Leonuri.Methods The NH2 column(250 mm? 4.6 mm,5 ? m) was adopted with acetonitrile-water(80 ∶ 20) as mobile phase at a flow rate of 1.0 mL/min.The detection wavelength was at 192 nm.The column temperature was at 22 ℃.The solution for content determination was obtained after extracted with ethanol and then filtered and purified through an activated charcoal-aluminium oxide column with ethanol as eluant.Results Stachydrine hydrochloride in fresh Herba Leonuri can be separated and determined on NH2 column.A good linear range was within 2.29～ 11.46 ? g.The average recovery for stachydrine hydrochloride was 98.26 % and RSD was 1.52 %(n=5).Conclusion The method is steady and with good repeatability,and can be used to determine the content of stachydrine hydrochloride in fresh Herba Leonuri.
