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  • Title: [Simultaneous determination of geniposide, baicalin and berberine hydrochloride in Angong Niuhuang pill by RP-HPLC].
    Author: Han FM, Li Y, Li LJ, Chen Y.
    Journal: Zhongguo Zhong Yao Za Zhi; 2007 Jul; 32(14):1406-8. PubMed ID: 17966351.
    Abstract:
    OBJECTIVE: A new method for the simultaneous quantitative determination of geniposide, baicalin and berberine hydrochloride in Angong Niuhuang pill using reversed phase high performance liquid chromatographic method had been developed. METHOD: The optimum chromatographic conditions were as follows: Agilent Zorbax SB - C18 column (4.6 mm 250 mm, 5 m), acetonitrile-H2O (containing 6 mmol L(-1) KH2PO4, pH 4.6) gradient elution; as a detection wavelength of 343 nm. RESULT: The calibration curves of geniposide, baicalin and berberine were linear at the ranges of 4.50-110.00, 5.00-153.00, 6.40-191.00 mg L(-1), respectively. The limits of detection of the method were 0.77 ng for geniposide, 1.53 ng for baicalin and 1.43 ng for berberine hydrochloride. The recoveries of the method were 104.44% (RSD 1.79% ) for geniposide, 96.98% (RSD 1.76%) for baicalin, 101.08% (RSD 3.1%) for berberine hydrochloride. CONCLUSION: This method had been successfully applied to determine the content of geniposide, baicalin and berberine hydrochloride in Angong Niuhuang pill.
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