Seven new microcystin variants discovered from a native Microcystis aeruginosa strain – unambiguous assignment of product ions by tandem mass spectrometry
1. Institute of Bioanalytical Chemistry, Saarland University, Saarbrücken, Germany;2. Area de Toxicología, Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, UNLP‐CONICET, La Plata, Argentina