反相高效液相色谱法定量分析旋覆花中1,5-二-O-咖啡酰奎尼酸

Journal of International Pharmaceutical Research(2012)

Cited 23|Views28
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Abstract
目的建立旋覆花药材中1,5-二-O-咖啡酰奎尼酸含量的HPLC测定方法。方法色谱柱为AgilentEclipse XDB-C18色谱柱(4.6 mm×250 mm,5μm);流动相甲醇-0.1%冰醋酸水溶液〔32∶68(0 min)~32∶68(15 min)~36∶64(40 min)〕梯度洗脱;检测波长320 nm;柱温30℃;流速1.0 ml/min。结果 1,5-二-O-咖啡酰奎尼酸在0.62~12.48μg(r=0.999 9)具有良好的线性;平均加样回收率(n=6)为100.9%(RSD=1.13%),方法精密度、稳定性、重复性好。10批药材中1,5-二-O-双咖啡酰奎尼酸的含量范围为1.03%~2.09%,平均含量为1.53%。结论该定量分析方法可用于旋覆花药材的质量控制。
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Key words
1,quantitative analysis,RP-HPLC,Inula japonica Thunb.,5-di-O-caffeoylquinic acid
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