摘要
目的:建立黄芩药材中4种活性成分(黄芩苷,汉黄芩苷,黄芩素,汉黄芩素)薄层鉴别及高效液相色谱同时定量的方法。方法:以CPACELL PAK C18色谱柱(5μm,250 mm×4.6 mm),流动相甲醇-0.1%磷酸溶液洗脱,测定波长275 nm,柱温30℃,流速1.0 m L·min-1。结果:4种成分的线性关系良好,精密度、稳定性、重复性的RSD均低于3.0%,加样回收率为95.4~98.3%。结论:该方法简便、灵敏、准确,可用于黄芩药材的质量控制。
Objective: : To establish a method for quantitative determination of four active ingredients( baicalin,wogonoside,baicalein,wogonin) in Radix Scutellariae by TLC and HPLC. Methods: The chromatographic separation was achieved on a CPACELL PAK C18column( 5 μm,250 mm × 4. 6 mm),the mobile phase was methanol- 0. 1% phosphate acid aqueous solution at a flow rate of 1. 0 m L·min- 1,the detection wavelength was 275 nm,and the column temperature was30 ℃. Results: The established method showed a good linear relationship for four components,the RSD were less than3. 0%,recovery was 95. 4% ~ 98. 3%. Conclusion: The method is simple,sensitive,accurate and can be used for quality control of Radix Scutellariae.
引文
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