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Reconstructed LC-MS/MS chromatograms of (a) certified reference standards; (b) the aqueous fraction from Fontinalis/Tychonema clumps from Reiherwerder, 6 June 2017 (WT1, Table 2); (c) the stomach contents of dog D1 (Table 2). The blue lines show the transitions indicative for cylindrospermopsin; red, orange and yellow lines show transitions for anatoxin-a.
