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目的建立络能片中血竭素的含量测定方法。方法采用RP-HPLC法,以Agilent Eclipse XDB-C18为分析柱(46mm×250 mm,5μm),流动相:乙腈-0.05mol·L-1磷酸二氢钠(55∶45),流速:1 ml·min-1,检测波长:440nm。结果血竭素在9~144μg·ml-1范围内与峰面积呈良好的线性关系(r=0.999 9)。加样回收率为99.61%,RSD=1.70%。结论该方法准确、简便、可靠,可以作为络能片的质量控制指标之一。
Objective To establish a method for determining the content of dracorhodin in Nuanneng tablets. Methods The mobile phase was acetonitrile-0.05 mol·L-1 sodium phosphate monobasic (55:45), the mobile phase was 1 ml with RP-HPLC on an Agilent Eclipse XDB-C18 column (46 mm × 250 mm, Min-1, detection wavelength: 440nm. Results Dracorhodin had a good linear relationship with the peak area in the range of 9 ~ 144μg · ml-1 (r = 0.999 9). The sample recovery was 99.61%, RSD = 1.70%. Conclusion The method is accurate, simple and reliable, which can be used as one of the quality control indexes of Naoen tablets.