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Microcystins are a family of heptapeptide hepatotoxins produced by some genera of cyanobacteria. These toxins have been responsible for the illness and death of both animals and humans. Due to their hazard to human health, extraction of all intracellular microcystin variants is required to characterize and quantify all microcystins present in a sample. To date, there is little work reported comparing...
A water bloom of Planktothrix (Oscillatoria) rubescens was observed in a drinking water reservoir in central Spain in 2003. Microcystins where analysed by LC/ESI-MS in 21 samples collected from this reservoir in five different days between March and May. A demethylated variant of microcystin-RR was identified as the major microcystin in most samples. Trace levels of microcystin-LR, -RR and -YR were...
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