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Journal of Natural Medicines

, Volume 65, Issue 3–4, pp 623–628 | Cite as

Comparison of contents of five ephedrine alkaloids in three official origins of Ephedra Herb in China by high-performance liquid chromatography

  • Hao Hong
  • Hu-Biao Chen
  • Dong-Hui Yang
  • Ming-Ying Shang
  • Xuan Wang
  • Shao-Qing Cai
  • Masayuki Mikage
Note

Abstract

In the present paper, a fast and economical HPLC method [on a Phenomenex Polar-RP column with a solution of (phosphoric acid:triethylamine:dibutylamine:water = 0.40:0.1:0.2:499.3) and methanol] is developed, and applied for the determination of norephedrine, norpseudoephedrine, ephedrine (E), pseudoephedrine (PE) and methylephedrine (ME) in 64 samples of three species from main habitats in China. Quantitation data showed that total alkaloid content in Ephedra equisetina Bge. (2.708 ± 0.642%) is higher than that in E. sinica Stapf. (1.365 ± 0.624%) and E. intermedia Schrenk et C. A. Mey. (1.537 ± 0.746%), but the range of total alkaloid content in each species is so wide that the ranges of the three species greatly overlap. The contents of E, PE and ME are different among the three species. The ratio E/total alkaloid content and ratio E/PE as well as E and ME contents can be used for identification of E. sinica, E. intermedia and E. equisetina from one another.

Keywords

Ephedra Herb Ephedra alkaloids Simultaneous determination Mahuang Species identification 

Notes

Acknowledgments

The work was financially supported by the National Outstanding Youth Funds of China (grant no. 30425018).

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Copyright information

© The Japanese Society of Pharmacognosy and Springer 2011

Authors and Affiliations

  • Hao Hong
    • 1
  • Hu-Biao Chen
    • 2
  • Dong-Hui Yang
    • 1
  • Ming-Ying Shang
    • 1
  • Xuan Wang
    • 1
  • Shao-Qing Cai
    • 1
  • Masayuki Mikage
    • 3
  1. 1.State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical SciencesPeking UniversityBeijingChina
  2. 2.School of Chinese MedicineHong Kong Baptist UniversityHong KongChina
  3. 3.Graduate School of Natural Science and TechnologyKanazawa UniversityKanazawaJapan

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