HPLC法同时测定赤芍中9个活性成分的含量

目的建立高效液相色谱(HPLC)同时测定赤芍提取物中9个活性成分(芍药苷、氧化芍药苷、芍药内酯苷、苯甲酰芍药苷、苯甲酸、儿茶素、丹皮酚、没食子酸、1,2,3,4,6-O-没食子酰葡萄糖)的方法。方法采用C18色谱柱(250 mm×4.6mm,5μm);流动相为乙腈和0.1%磷酸水溶液,梯度洗脱,体积流量1.0 m L/min,检测波长230 nm,柱温30℃。结果没食子酸、氧化芍药苷、儿茶素、芍药内酯苷、芍药苷、1,2,3,4,6-O-没食子酰葡萄糖、苯甲酸、苯甲酰芍药苷、丹皮酚进样量分别在0.004~1.200、0.010~1.500、0.044~0.660、0.038~1.140、0.042~2.100、0.050~1.250、0.040~0.600、0.042~1.260和0.004~1.080 mg/m L与峰面积呈良好线性关系,有良好的精密度、稳定性、重复性和回收率。结论该方法同时测定赤芍中9个活性成分的含量高效、准确、重复性好,可用于赤芍药材的质量控制。

Simultaneous determination of nine components in Paeoniae Radix Rubra by HPLC

Objective A high performance liquid chromatographic method (HPLC) was established to simultaneously quantify the paeoniflorin, oxypaeoniflora, albiflorin, benzoyl paeoniflorin, benzoic acid, catechin, paeonol, gallic acid, and 1,2,3,4,6-penta-O-galloy-D-glucose of Paeoniae Radix Rubra.Methods The mobile phase comprised of acetonitrile and water containing 0.1% phosphoric acid. Column temperature was 30 ^oC, flow rate was 1.0 mL/min, and chromatography was monitored at 230 nm.Results The correlation coefficients between concentration and chromatographic peak area of gallic acid, oxypaeoniflora, catechin, albiflorin, paeoniflorin, 1,2,3,4,6-penta-O-galloy-D-glucose, benzoic acid, benzoyl paeoniflorin, and paeonol were respectively over 0.999 in the ranges of 0.004-1.200, 0.010-1.500, 0.044-0.660, 0.038-1.140, 0.042-2.100, 0.050-1.250, 0.040-0.600, 0.042-1.260, and 0.004-1.080 mg/mL, with good precision, stability, repeatability, and recovery.Conclusion The method is effective, accurate and reproducible, and can be used for the quality control of Paeoniae Radix Rubra.