References
- Zhang , C. P. , Lv , X. Y. , Ma , P. C. , Chen , Y. , Zhang , Y. G. , Yan , Z. , Chen , G. F. , Zheng , Q. T. , He , C. H. and Yu , D. Q. 1993 . Studies on diterpenoids from leaves of Tripterygium wilfordii . Acta Pharmaceutica Sinica. , 28 : 110 – 115 .
- Gu , W. Z. , Chen , R. , Brandwein , S. , Mcalpine , J. and Burres , N. 1995 . Isolation, purification, and characterization of immunosuppressive compounds from Tripterygium: triptolide and tripdiolide . Int. J. Immunopharmacol. , 17 ( 5 ) : 351 – 356 .
- Chou , W. C. , Wu , C. C. , Yang , P. C. and Lee , Y. T. 1995 . Hypovolemic shock and mortality after ingestion of Tripterygium wilfordii Hook F.: a case report . Int. J. Cardiol. , 49 : 173 – 177 .
- Berthod , A. 2002 . Countercurrent Chromatography. The Support‐Free Liquid Stationary Phase , Comprehensive Analytical Chemistry Edited by: Berthod , A. Vol. XXXVIII , Amsterdam : Elsevier .
- Wei , Y. , Zhang , T. Y. , Xu , G.‐Q. and Ito , Y. 2001 . Application of analytical and preparative high‐speed countercurrent chromatography for separation of lycopene from crude extract of tomato paste . J. Chromatogr. , 929 : 169 – 173 .
- Hostettmann , K. and Marston , A. 2001 . Countercurrent chromatography in the preparative separation of plant‐derived natural products . J. Liq. Chrom. & Rel. Technol. , 24 : 1711 – 1721 .
- Yang , F. Q. , Quan , J. , Zhang , T. Y. and Ito , Y. 1998 . Multidimensional counter‐current chromatographic system and its application . J. Chromatogr. , 803 : 298 – 301 .
- Zhang , T. Y. “ Separation and purification of natural products (medicinal herbs) by HSCCC ” . Ch 8. in Ref. 4