Abstract
We have investigated displacement thin-layer chromatography with organic bases N,N-dimethyl-1,3-propanediamine, N,N-dimethylcyclohexylamine, and triethylamine for the separation of seven toad-poison bufadienolides - resibufogenin, cinobufagin, bufalin, bufotalin, cinobufotalin, telocinobufagin, and gamabufotalin. The multiple use of the mobile phase mixtures n-hexane-acetone, n-hexane-ethyl acetate, n-hexane-dichloromethane- acetone, n-hexane-dichloromethane-methanol, and n-hexane-ethyl acetate- methanol, each containing 3% (v/v) organic bases, furnished effective separation of the bufadienolides. The characteristics of the separations and the visualization of the bufadienolides by derivatization are also discussed. The technique has been applied to the analysis of the major bufadienolides in the Chinese traditional drug Ch'an Su.
Original language | English (US) |
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Pages (from-to) | 120-123 |
Number of pages | 4 |
Journal | Journal of Planar Chromatography - Modern TLC |
Volume | 12 |
Issue number | 2 |
State | Published - Mar 1999 |
Keywords
- Bufadienolides
- Ch'an Su
- Displacement TLC
- Multiple one-dimensional separation
- Multiple two- dimensional separation
ASJC Scopus subject areas
- Analytical Chemistry
- Biochemistry
- Clinical Biochemistry