Determination of pueratin in Jiangzhi Hugan capsule by HPLC
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摘要: 目的 建立高效液相色谱法测定降脂护肝胶囊中葛根素的含量。 方法 色谱柱为Waters Symmetry C18柱(4.6 mm×250 mm,5 μm),流动相为乙腈-1%甲酸(11:89),检测波长250 nm,流速1.0 ml/min,柱温30 ℃,进样量10 μl。 结果 葛根素在2~40 μg/ml范围内(r=0.999 8)呈良好的线性关系,精密度实验中RSD均小于2%,加样回收率在98%~103%。 结论 该测定方法简便、准确,分离效果好,可用于降脂护肝胶囊的质量控制。Abstract: Objective To develop a HPLC method for determination of pueratin. Methods The separation was carried out on a Waters Symmetry C18 column(4.6 mm×250 mm, 5 μm), the mobile phase was composed of acetonitrile and 1% formic acid(11:89), the detection wavelength was set at 250 nm, the flow rate was 1.0 ml/min, the column temperature was 30 ℃ and the injection volume was 10 μl. Results The linearity was obtained over 2~40 μg/ml (r=0.999 8) for pueratin. The RSD of precision were less than 2%. The average recovery was between 98% and 103%. Conclusion This HPLC method was simple, accuracy and suitable for the quality control of Jiangzhi Hugan capsule.
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Key words:
- HPLC /
- Jiangzhi Hugan capsule /
- pueratin /
- content determination
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