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Microginin (MGN) compounds clustered together by the GNPS analysis based on the MS/MS fragmentation spectra obtained from all three sampling sites (Red: DH, blue: KL, green: KV). Selective known MGNs congener chemical structures detected in this respective cluster is depicted here, whose fragmentation patterns are available in the library of the GNPS server. Note that (M + H)+ and (M + 2H)2+ ions are in the molecular cluster.
