HPLC法同时测定六经头痛片中4种成分

摘要

AIM To establish an HPLC method for the simultaneous content determination of four constituents in Liujing Toutong Tablets (Angelicae dahuricae Radix,Magnoliae Flos,Ligustici Rhizoma et Radix,etc.).METHODS The analysis of 30％ ethanol extract of this drug was performed on a 35 ℃ thermostatic Waters C18 column (4.6 mm × 250 mm,5 μm),with the mobile phase comprising of methanol-4％ acetic acid flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelength was set at 320 nm.RESULTS Puerarin,ferulic acid,imperatorin and isoimperatorin showed good linear relationships within the ranges of 60.6-303 μg/mL (r=0.999 9),1.59-7.95 μg/mL (r =0.999 9),1.57-7.85 μg/mL (r =0.999 9) and 0.752 5-3.762 5 μg/mL (r =0.999 7),whose average recoveries (RSDs) were 97.75％ (1.7％),97.68％ (2.3％),97.94％ (1.0％) and 98.29％ (1.6％),respectively.CONCLUSION This stable and reliable method can be used for the quality control of Liujing Toutong Tablets.%目的 建立HPLC法同时测定六经头痛片(白芷、辛夷、藁本等)中4种成分的含有量.方法 该药物30％乙醇提取液的分析采用Waters C18色谱柱(4.6 mm×250 mm,5μm);以甲醇-4％乙酸为流动相,梯度洗脱;检测波长320 nm;体积流量1.0 mL/min;柱温35℃.结果 葛根素、阿魏酸、欧前胡素、异欧前胡素分别在60.6～303 μg/mL(r =0.999 9)、1.59～7.95 μg/mL (r=0.9999)、1.57～7.85 μg/mL (r=0.999 9)、0.752 5～3.762 5 μg/mL (r=0.999 7)范围内呈良好的线性关系,平均加样回收率(RSD)分别为97.75％(1.7％)、97.68％(2.3％)、97.94％(1.0％)、98.29％(1.6％).结论 该方法稳定可靠,可用于六经头痛片的质量控制.