HPLC法测定复康宝胶囊中补骨脂素与异补骨脂素的含量

Determination of Psoralen and Isops oralen Contents in Fukangbao Capsul e by HPLC

目的建立反相HPLC法测定康复宝胶囊中补骨脂素、异补骨脂素的含量。方法液相ODS—C18色谱柱,流动相为甲醇-水(40∶60),柱温35℃,流速1mL/min,检测波长247nm。结果补骨脂素和异补骨脂素分别在1.05～10.50μg/mL,1.02～10.20μg/mL范围内线性关系良好,相关系数分别为r补骨脂素=0.9999,和r异补骨脂素=0.9999。两组分的回收率分别是补骨脂素97.5%,异补骨脂素100.8%,RSD均为0.6%。结论本法可同时测定补骨脂素与异补骨脂素,方法简便,精确,为其限量标准提供了科学依据。

Objective To establish a reversed -phase HPLC m ethod for the determination of psora len and isopsoralen in Fukangbao capsule.Methods The contents of Psoralen and Isopsoralen were assayed on a ODS -C 18 column with a mobile phase of methanol -water(40∶60)at a column temperature of 35℃.The fl ow rate was 1.0mL /min.The detection wave-length was at 247nm.Results The linear ranges of Psoralen and Iso psoralen were 1.05～10.52μg /mL(r =0.9999)and1.02～10.20μg /mL(r =0.9999)respectively.Their recoveries were within 97.5%(Psoralen)and 100.8%(Isopsoralen),and both of their RSD were 0.6%.Conclusion This method is simple,rapid and accu rate and suitable for quantity -limiting control of Fukan gbao capsule.