Activity-screening-guided isolation and purification for vasodilative effects compounds fromRadix Astragaliby high-speed counter-current chromatography using gradient elution

Zu-fei Feng, Xiao-fen Chen, Jia Zhang, Duo-long Di
  • Natural Product Research, June 2013, Taylor & Francis
  • DOI: 10.1080/14786419.2012.691492

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