WANG Shuang, ZHANG Li-yan, XIE Yu, et al. Determ Ina Tion of Gallic Acid in Polygonum Capita Tum and Relinqing Granules by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(9): 112-115.
WANG Shuang, ZHANG Li-yan, XIE Yu, et al. Determ Ina Tion of Gallic Acid in Polygonum Capita Tum and Relinqing Granules by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(9): 112-115.DOI:
Objective: To establish an HPLC method for determination of the contents of gallic acid in Polygonum capitatum and Relinqing granules. Method: The reserved HPLC method was achieved. Diamonsil C18 colunm (4.6 mm×250 mm
5 μm) with MeOH-H2O-DMF-HAc (1∶95∶3∶1) as amobile phase at flow rate of 1.0 mL·min- 1and detection wavelength was at 272 nm and the column temperature was at 25 ℃. Result: The calibration curve was linear in the range of 0.139 6-1.396 0 μg (r=0. 999 97). The average recovery rate of gallic acid in P. capitatum was 99.35% (RSD 2.61%)
and was 99.35% (RSD 0.73%) in Relinqing granules. Conclusion: The method is reliable
specific and with good repeatability.It can be used for the quality control of P.capitatum and Relinqing granules and provide a science bases for the planting of polygonum cap itatum.