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Planta Med 1969; 17(2): 164-169
DOI: 10.1055/s-0028-1099841
DOI: 10.1055/s-0028-1099841
ESTIMATION OF THE ALKALOIDS OF RAUWOLFIA CAFFRA BY QUANTITATIVE THIN–LAYER CHROMATOGRAPHY
African Rauwolfia Species – XIV1 1 Part XIII. The alkaloids of Rauwolfia volkensii Stapf, Can. J. Pharm. Sci., 3, 70–72 (1968).Further Information
Publication History
Publication Date:
15 January 2009 (online)
Summary
An assay process involving the separation of the alkaloids by thin–layer chro–matography and subsequent ultraviolet spectrophotometric estimation after quantitative elution of the individual alkaloids is proposed for R. caffra Sond. root bark. The sample investigated yielded 0.10 per cent ajmalicine, 1.21 per cent ajmaline, 0.01 per cent rescinnamine, 0.07 per cent reserpine and 0.90 per cent serpentine, the weaker bases comprising 8.24 per cent of the total alkaloids estimated.
Zusammenfassung
Für die Wurzelrinde von Rauwolfia caffra wird eine Methode zur Trennung der Alkaloide durch Dünnschichtchromatographie und anschließende UV–spectro–photometrische Schätzung der quantitativ eluierten Alkaloide vorgeschlagen.