Markus Himmelsbach, Franz Mlynek, Wolfgang Buchberger, Lawrence Madikizela, Christian W Klampfl
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Analyzing water hyacinth plants from two South African rivers for the detection of seven pharmaceuticals and their metabolites.
Water hyacinth plants (Eichhornia crassipes Mart.) collected from two South African rivers were analyzed in order to investigate their suitability for judging the presence of pharmaceuticals in the water. Thereby, a number of drugs, including amitriptyline, atenolol, citalopram, orphenadrine, lidocaine, telmisartan, and tramadol, could be detected. Particularly for the latter substance, relatively high concentrations (more than 5000 ng g-1 dry plant material) were detected in the water plants. Subsequently, the plant extracts were also screened for drug-derived transformation products, whereby a series of phase-one metabolites could be tentatively identified.
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