食品科学 ›› 2012, Vol. 33 ›› Issue (2): 224-226.doi: 10.7506/spkx1002-6630-201202049

• 分析检测 • 上一篇    下一篇

HPLC-ELSD法同时测定连翘叶中齐墩果酸和熊果酸

赵韶华,刘敏彦,王玉峰,许红辉,张永锋,王 猛   

  1. 石家庄以岭药业股份有限公司
  • 出版日期:2012-01-25 发布日期:2012-01-16
  • 基金资助:
    国家科技重大专项(2009ZX09313-003)

Simultaneous Determination of Oleanolic Acid and Ursolic Acid in the Leaves of Forsythia suspensa by HPLC-ELSD

ZHAO Shao-hua,LIU Min-yan,WANG Yu-feng,XU Hong-hui,ZHANG Yong-feng,WANG Meng   

  1. Shijiazhuang Yiling Pharmaceutical Co. Ltd., Shijiazhuang 050035, China
  • Online:2012-01-25 Published:2012-01-16

摘要: 目的:建立高效液相色谱-蒸发光散射检测法(high performance liquid chromatography -evaporative light scattering detector,HPLC-ELSD)法同时测定连翘叶中齐墩果酸和熊果酸。方法:色谱柱:Waters Symmetry C18(4.6mm×250mm,5μm);柱温25℃,流动相:甲醇-0.4%冰醋酸溶液(93:7,V/V),流速0.4mL/min;蒸发光散射检测器检测条件:漂移管温度80℃,气体压力25psi。结果:齐墩果酸在0.107~2.136μg范围内线性关系良好(r=0.9991),熊果酸在0.179~3.584μg范围内线性关系良好(r=0.9993);齐墩果酸和熊果酸的回收率分别为98.67%和98.56%。结论:此方法简便、准确,重现性良好,为评价连翘叶的质量提供可靠的分析方法。

关键词: 连翘叶, 高效液相色谱-蒸发光散射检测法(HPLC-ELSD), 齐墩果酸, 熊果酸

Abstract: Objective: To establish an high performance liquid chromatography-evaporative light scattering detector (HPLC-ELSD) method for the simultaneous determination of oleanolic acid and ursolic acid in the leaves of Forsythia suspensa. Methods: The chromatographic separation was carried out on a Waters Symmetry C18 column (4.6 mm× 250 mm, 5 μm) with a mobile phase composed of methanol and 0.4% acetic acid (93:7, V/V) at a flow rate of 0.4 mL/min. An evaporative light scattering detector was used to detect oleanolic acid and ursolic acid with a drift tube temperature of 80 ℃ and a gas pressure of 25 psi. Results: Both the developed calibration curves of oleanolic acid and ursolic acid revealed a good linear relationship over the ranges of 0.107-2.136 μg (r = 0.9991) and 0.179-3.584μg (r = 0.9993), respectively. The recovery rates of oleanolic acid and ursolic acid were 98.67% and 98.56%, respectively. Conclusion: A simple, accurate and credible HPLC-ELSD method has been developed, which is suitable for the quality contro1 of the leaves of Forsythia suspensa.

Key words: leaves of Forsythia suspensa, high performance liquid chromatography -evaporative light scattering detector(HPLC-ELSD), oleanolic acid, ursolic acid

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