食品科学

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高效液相色谱法同时测定仙鹤草中6 种黄酮

高 意,周光明*,陈军华,秦红英   

  1. 发光与实时分析教育部重点实验室,西南大学化学化工学院,重庆 400715
  • 出版日期:2015-09-25 发布日期:2015-09-11
  • 通讯作者: 周光明
  • 基金资助:

    国家自然科学基金面上项目(21277110)

Determination of Six Flavonoids in Agrimonia pilosa Ledeb by HPLC

GAO Yi, ZHOU Guangming*, CHEN Junhua, QIN Hongying   

  1. Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering,
    Southwest University, Chongqing 400715, China
  • Online:2015-09-25 Published:2015-09-11
  • Contact: ZHOU Guangming

摘要:

目的:建立超声辅助萃取-高效液相色谱法分离仙鹤草中芦丁、花旗松素、香豆素、木犀草素、山奈酚和芹菜素6 种黄酮及其含量测定的方法。方法:采用Phenomenex C18色谱柱(150 mm×4.6 mm,5 μm)分离6 种成分;流动相为甲醇-0.1%醋酸溶液,梯度洗脱;流速0.8 mL/min,紫外检测波长320 nm,柱温35 ℃。结果:6 种成分在15 min内均达到基线分离,线性关系良好(r不低于0.999 1,n=6),平均回收率均在97.78%~104.4%之间(相对标准偏差小于1.20%,n=3)。结论:本实验采用超声波法提取,方法简单、快速、经济、可靠,可用于仙鹤草的质量监控。

关键词: 高效液相色谱, 仙鹤草, 超声萃取, 黄酮, 含量测定

Abstract:

Objective: To establish a high performance liquid chromatography (HPLC) method for separation and
quantification of rutin, taxifolin, coumarin, luteolin, kaempferol and apigenin in Agrimonia pilosa Ledeb by ultrasonic-assisted
extraction. Methods: The separation of six flavonoids was performed on Phenomenex C18 column (150 mm × 4.6 mm,
5 μm) using step gradient elution. The mobile phase was composed of methanol and 0.1% acetic acid at a flow rate of 0.8 mL/min.
The UV detection wavelength was 320 nm and the column temperature was set at 35 ℃. Results: Good separation of
rutin, taxifolin, coumarin, luteolin, apigenin and kaempferol was achieved within 15 min. Calibration curves of all the six
components showed an excellent linear relationship (r ≥ 0.999 1, n = 6). The average recoveries were between 97.78%
and 104.4% with a relative standard deviation (RSD) of < 1.20%. Conclusion: This method, based on ultrasonic-assisted
extraction, is simple, fast, economical and reliable.

Key words: high performance liquid chromatography (HPLC), Agrimonia pilosa Ledeb, ultrasonic-assisted extraction, flavonoids, quantitation

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