食品科学 ›› 2011, Vol. 32 ›› Issue (12): 243-245.doi: 10.7506/spkx1002-6630-201112053

• 分析检测 • 上一篇    下一篇

RP-HPLC-PAD法测定迷迭香中乌索酸和齐墩果酸的含量

冷桂华   

  1. 宜春学院化学与生物工程学院,江西省天然药物活性成分研究重点实验室
  • 出版日期:2011-06-25 发布日期:2011-06-10

Determination of Ursolic Acid and Oleanolic Acid in Rosmarinus officinalis by RP-HPLC-PAD

LENG Gui-hua   

  1. Key Laboratory of Jiangxi for Research on Active Ingredients in Natural Medicines, College of Chemical and Biological Engineering, Yichun University, Yichun 336000, China
  • Online:2011-06-25 Published:2011-06-10

摘要: 采用反相高效液相色谱二极管阵列检测器法分离、测定迷迭香中乌索酸和齐墩果酸的含量。色谱条件: Kromasil C18色谱柱(4.6mm×250mm,45μm),检测波长210nm、流动相为甲醇:水:磷酸(88:12:0.1)、流速0.8mL/min、柱温30℃条件下实验。乌索酸进样量在0.10~4.00μg范围内,平均回收率为100.6%,乌索酸峰面积的相对标准偏差为1.6%。齐果酸进样量在0.05~2.00μg范围内,平均回收率为98.7%,相对标准偏差为1.2%。该法灵敏度高、重现性好、准确。可用于测定迷迭香中这两种三萜类酸的含量。

关键词: 迷迭香, 乌索酸, 齐墩果酸, 高效液相色谱, 二极管阵列检测器

Abstract: Ursolic acid (UA) and oleanolic acid (OA) in Rosmarinus officinalis were separated and determined by RP-HPLC-PAD. HPLC assay was performed on Kromasil C18 column (4.6 mm×250 mm, 45μm) and the two compounds were detected at 210 nm using methanol-water-phosphoric acid (88:12:0.1) as mobile phase at a flow rate of 0.8 mL/min and the column temperature was set at 30 ℃. An average recovery of 100.6% was obtained with RSD of 1.6% in the sample injection volume range of 0.10-4.00μg for UA, and an average recovery of 98.7% was obtained with RSD of 1.2% in the sample injection volume range of 0.05-2.00μg for OA. The determination results of samples showed that the method was sensitive, repeatable and accurate, and could therefore be used for the determination of the two triterpene acids in Rosmarinus officinalis.

Key words: Rosmarinus officinalis, ursolic acid, oleanolic acid, HPLC, photodiode array detector

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