Abstract:Objective To establish a method for simultaneous determination of the content of four active ingredients(gallic acid,catechin,paeoniflorin,paeonol) in Moutan Cortex formula granules,and to determine the content of the four active ingredients in 22 batches of Moutan Cortex formula granules sold in Shandong Province,and to analyze the influence of different extraction processes on the content of active ingredients.Methods Agilent ZORBAX SB-C18 column was used,with acetonitrin-0.2% phosphoric acid solution as the mobile phase,gradient elution,flow rate 1.0 ml/min,detection wave length 230 nm,column temperature: 35℃,injection volume: 10 μl.Results There were good linear relationships of gallic acid,catechin,paeoniflorin and paeonol to peak area in the range of 1.07-107.34 μg/ml (R2=0.999),1.08-108.12 μg/ml(R2=0.998),1.01-101.14 μg/ml(R2=0.999)and 1.04-104.24 μg/ml(R2=0.999),respectively.The average recovery rates were 95.26%,94.66%,95.54%,95.57%,and the RSD were 0.2%,0.5%,0.2%,0.3%,respectively.In 22 batches of commercial samples,the concentrations of gallic acid,catechin,paeoniflorin and paeonol were 6.028-21.996 mg/g,0.032-0.209 mg/g,11.147-26.269 mg/g and 0.215-11.499 mg/g,respectively.Conclusion The content determination method is fast and simple,which can provide a scientific method and basis for standardizing and controlling the quality of Moutan Cortex formula granules.
王劲; 付美芳; 李怀伟. 高效液相法同时测定市售牡丹皮配方颗粒中四种活性成分的含量[J]. 中国当代医药, 2023, 30(21): 23-27.
WANG Jin FU Meifang LI Huaiwei. Simultaneous determination of four active ingredients in commercial Moutan Cortex formula granules by high performance liquid chromatography. 中国当代医药, 2023, 30(21): 23-27.