title: [II1: TLC and HPLC-Analysis of Pyrrolizidine-N-oxid Alkaloids of Symphyti Radix].
abstract: 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.
authors.affiliation: Institut für Pharmazeutische Arzneimittellehre der Universität München, Bundesrepublik Deutschland.
authors.forename: H
authors.initials: H
authors.lastname: Wagner
authors.forename: U
authors.initials: U
authors.lastname: Neidhardt
authors.forename: G
authors.initials: G
authors.lastname: Tittel