ISSN:
1612-1112
Keywords:
Thin-layer chromatography
;
Micellar electrokinetic chromatography
;
Ecdysteroids
;
Serratula tinctoria
;
Serratula wolffii
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary Seasonal dependence of 20-hydroxyecdysone content ofSerratula tinctoria andSerratula wolffii (Asteraceae) was investigated by micellar electrokinetic chromatography (MEKC). Samples were collected each month through the vegetation period. The leaves were dried, milled and extracted with methanol. Clean-up of the extracts was by solid-phase extraction using a polyamide micro-column to remove flavonoids and other plant phenolics which can interfere with the analysis. This work deals with the separation of 20-hydroxyecdysone from polypodine B and the seasonal variation of 20-hydroxyecdysone concentration. Determinations have been performed by both thin-layer chromatography and capillary electrophoresis using micellar electrokinetic chromatography.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02467531
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