YANG Li-chang, YI Yin, LIN Jun-qing, et al. Determination of Quercetin Content in Heibai Baoganqing Granules of Miao Ethnomedicine by RP-HPLC[J]. Chinese journal of experimental traditional medical formulae, 2010, 16(11): 64-66.
YANG Li-chang, YI Yin, LIN Jun-qing, et al. Determination of Quercetin Content in Heibai Baoganqing Granules of Miao Ethnomedicine by RP-HPLC[J]. Chinese journal of experimental traditional medical formulae, 2010, 16(11): 64-66.DOI:
Objective: To establish a method to determine quercetin in Heibai Baoganqing Granules of Mao ethnomedicine by HPLC. Method: HPLC was used. The column was Diamonsil (TM) C18 (4.6 mm×250 mm
5 μm). The mobile phase consisted of methanol-0.2% phosphoric acid (56 ∶44)
with the flow rate of 1.0 mL ·min-1 and the wavelength was at 370 nm. Result: Quercetin was linear in the range of 0.020 6~0.133 μg. The average recovery was 98.2%. The average content of quercetin in five samples was 1.44 mg ·g-1. Conclusion: This method is accurate
simple and reproducible
and can be used for the determination of quercetin in Heibai Baoganqing Granules.