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A new method to assess the toxic effects of linear alkylbenzenesulfonate (LAS: alkyl carbon number; 12) and quaternary alkylammonium chloride was established by using living green alga, Dunaliella sp.. This method is based on the 1 H-NMR determination of glycerol which decreased quantitatively with increased concentrations of surfactants.The flagella immobilities and the cell mortalities...
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