[II1: TLC and HPLC-Analysis of Pyrrolizidine-N-oxid Alkaloids of Symphyti Radix].
A new TLC- and HPLC-method for the detection and estimation of the main alkaloids from Symphytum roots, Symphytine, Echimidine, Lycopsamine, and Acetyllycopsamine in their genuine N-oxide form is described. The method provides characteristic finger-prints for the constituents of the Symphytum drugs of different origin and varying harvest seasons.
Wagner
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Institut für Pharmazeutische Arzneimittellehre der Universität München, Bundesrepublik Deutschland.
Neidhardt
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Tittel
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