ZHANG Jian-wei, ZHAO Qian, HE Xi-rong, et al. Simultaneous Determination of Six Flavones in Yinhuang Granule by UPLC[J]. Chinese journal of experimental traditional medical formulae, 2014, 20(18): 50-53.
ZHANG Jian-wei, ZHAO Qian, HE Xi-rong, et al. Simultaneous Determination of Six Flavones in Yinhuang Granule by UPLC[J]. Chinese journal of experimental traditional medical formulae, 2014, 20(18): 50-53. DOI: 10.13422/j.cnki.syfjx.2014180050.
Objective: This study was aimed to develop an UPLC method to determine the contents of chlorogenic acid
caffeic acid
baicalin
wogonoside
baicalein and wogonin in Yinhuang granule. Method: Six active components were separated on an ACQUITY UPLC BEH C18column(2.1 mm×50 mm
1.7 μm)eluted with acetonitrile and water containing 0.2% phosphoric acid as mobile phases in a linear gradient mode. The detection wavelength was set at 326 nm. Result: The linear ranges were 0.000 107-0.107 μg for chlorogenic acid
0.000 244-0.244 μg for caffeic acid
0.000 272-0.272 μg for baicalin
0.000 059 0-0.059 0 μg for wogonoside
0.000 053 0-0.053 μg for baicalein
0.000 051 0-0.051 μg for wogonin
respectively. The average recoveries of the six components were 96.34%(RSD 0.90%)
101.4%(RSD 1.53%)
95.64%(RSD 1.34%)
98.01%(RSD1.72%)
98.61%(RSD 1.96%)
102.7%(RSD 1.42%)
respectively. Conclusion: The method was proven to be simple
accurate
reliable and can be used for quality control of the six flavones inYinhuang granule.