Fig. 1From: Age- and environment-dependent changes in chemical defences of larval and post-metamorphic toadsHPLC-DAD-ESI-MS analysis of bufadienolides. Representative UV chromatograms of the separated standards (a) and a common toad sample (b, sample nr. 213 [47]), as well as the MS (c) and UV (d) spectra of bufotalin. Further examples of representative chromatograms of the common toad can be accessed in the online appendix of [45]Back to article page