Stir bar contamination: a method to establish and maintain constant water concentrations of poorly water-soluble chemicals in bioconcentration experiments.

Abstract

A novel experimental system to establish and maintain constant dissolved concentrations of poorly water-soluble compounds for bioconcentration experiments with algae was developed. Although still recommended in the literature as a "non-adsorptive" material, a commercially available Teflon stir bar that was preloaded with polychlorinated biphenyls (PCBs… (More)

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