These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: [Fast and simultaneous determination of four index components in Qingwei Huanglian tablets by RP-HPLC].
    Author: Li YR, Jiang Y, Hao F, Ding XY.
    Journal: Zhongguo Zhong Yao Za Zhi; 2007 Dec; 32(24):2597-600. PubMed ID: 18338595.
    Abstract:
    OBJECTIVE: To establish a RP-HPLC method for fast and simultaneous determination of four index contents, which are Genpioside, Baicalin, Berberine Hydrochloride and Ammonium Glyeyrrhizinate, in Qingwei Huanglian tablets. METHOD: A separation was well achieved by gradient elution on a Hypersil C18 (4.6 mm x 250 mm, 5 microm) column with the mobile phases of acetontrile -0.5% triethylamine water-solution (pH 3.0) at a flow rate of 1.0 mL x min(-1), detection wavelength of 230 nm, and room temperature. RESULT: The calibration curve were linear in the ranges of 4.82-77.2, 5.80-92.8, 1.63-26.1 and 6.40-102 microg x mL(-1) (r = 0.9997-0.9999) for genpioside, baicalin, berberine hydrochloride and ammonium glyeyrrhizinate, respectively. The average recoveries of four index components were not less than 98.0%. CONCLUSION: The method is convenient, rapid and accurate. It is suitable for the quality control of Qingwei Huanglian tablets.
    [Abstract] [Full Text] [Related] [New Search]