Aim A reliable and rapid HPLC method was developed for quantitative determination of coniferyl femlate, an ester of ferulic acid, with multiple pharmacological activities in Angelica sinensis and Ligusticum chuanxiong...Aim A reliable and rapid HPLC method was developed for quantitative determination of coniferyl femlate, an ester of ferulic acid, with multiple pharmacological activities in Angelica sinensis and Ligusticum chuanxiong, two commonly used Chinese medicines. Methods The determination was achieved by using a Zorbax ODS C18 analytical column (250 mm×4.6 mm ID, 5 μm) at isocratic elution of 1% aqueous acetic acid and acetonitrile (1:1) with diode-array detection (318 nm). The calibration curve of coniferyl femlate showed good linearity (r^2 = 0.9995) within the test range. Results The developed method showed good precision with intra- and inter-day variations of 0.22% - 1.16% and 0.86% - 2.62% between the levels of 0.380 - 0.038 mg·mL^-1, respectively. The repeatability represented as RSD of coniferyl femlate was less than 2.7% for three levels (0.2 - 1.0 g of Angelica sinensis), and the recovery was 105.3% with RSD of 3.2%. Conclusion The validated method was successfully applied to quantify coniferyl femlate in 12 samples of Danggui and Chuanxiong.展开更多
目的 建立一测多评法(quantitative analysis of multi-components by a single marker,QAMS)同时测定当归中阿魏酸、洋川芎内酯I、洋川芎内酯H、阿魏酸松柏酯、藁本内酯和丁烯基苯酞的含量。方法 采用Waters X-Select CSH色谱柱(250 mm...目的 建立一测多评法(quantitative analysis of multi-components by a single marker,QAMS)同时测定当归中阿魏酸、洋川芎内酯I、洋川芎内酯H、阿魏酸松柏酯、藁本内酯和丁烯基苯酞的含量。方法 采用Waters X-Select CSH色谱柱(250 mm×4.6 mm,5μm),以0.085%磷酸-水溶液(A)-乙腈(B)为流动相,梯度洗脱,体积流量1.0 mL/min,柱温40℃,检测波长265 nm。结果 在线性范围内各成分线性良好(R^(2)>0.999)。以藁本内酯为内标,阿魏酸、洋川芎内酯I、洋川芎内酯H、阿魏酸松柏酯和丁烯基苯酞的相对校正因子分别为1.073 4、0.564 8、0.468 1、0.926 2、1.083 5;同时采用外标法测定这6个成分的含量,将2种方法进行分析比较,结果没有明显差异。结论 建立了当归药材中阿魏酸、洋川芎内酯I、洋川芎内酯H、阿魏酸松柏酯、藁本内酯和丁烯基苯酞6个成分的QAMS法,该法可用于当归的质量控制。展开更多
基金Macao Science and Technology Development Fund(049/2005/A-R1) Jiangsu Key Laboratory for TCM FormulaeResearch, Nanjing University of Traditional Chinese Medicine (No.022021014003).
文摘Aim A reliable and rapid HPLC method was developed for quantitative determination of coniferyl femlate, an ester of ferulic acid, with multiple pharmacological activities in Angelica sinensis and Ligusticum chuanxiong, two commonly used Chinese medicines. Methods The determination was achieved by using a Zorbax ODS C18 analytical column (250 mm×4.6 mm ID, 5 μm) at isocratic elution of 1% aqueous acetic acid and acetonitrile (1:1) with diode-array detection (318 nm). The calibration curve of coniferyl femlate showed good linearity (r^2 = 0.9995) within the test range. Results The developed method showed good precision with intra- and inter-day variations of 0.22% - 1.16% and 0.86% - 2.62% between the levels of 0.380 - 0.038 mg·mL^-1, respectively. The repeatability represented as RSD of coniferyl femlate was less than 2.7% for three levels (0.2 - 1.0 g of Angelica sinensis), and the recovery was 105.3% with RSD of 3.2%. Conclusion The validated method was successfully applied to quantify coniferyl femlate in 12 samples of Danggui and Chuanxiong.