Abstract

Abstract Research results are described which bring out the potential of using commercially available solid-phase extraction membranes and solid-state spectroscopy for monitoring water pollution. The membranes are used to preconcentrate pollutants by sorption from aqueous solution followed by nondestructive spectroscopic measurements. Solid-state fluorescence measurements using EmporeTM C18 membranes were employed in the laboratory for concept validation studies. Tabs from the membranes were suspended in solutions containing parts per billion (ppb) concentrations of anthracene for specific periods of time. The tabs were withdrawn, allowed to dry briefly in air, and then examined for fluorescence. The potential exists for at least semiquantitative analysis. The method is relatively simple. Use of extraction membranes in B dip-stick mode is new, as is the use of the membranes with solid-state fluorescence spectroscopy. Limitations are being defined.

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