Matrix Type Effect on Sorption Concentration Process and Luminescent Determination of Pyrene

Abstract

The influence of the type of the matrix on the process of sorption concentration of pyrene (one of the best-known ecotoxicants of the series of polycyclic aromatic hydrocarbons (PAHs)) in homogeneous and heterogeneous solutions (distilled water, an R-12 solvent (a mixture of toluene, butyl acetate, and xylene), and an aqueous micellar solution of an anionic surface-active substance, sodium dodecyl sulfate) as well as on its further determination via solid-phase luminescence is studied. The sorption properties of the following matrices are compared: a cellulose sorbent (filter paper) and filter materials based on polypropylene, viscose, and polyester. It is found experimentally that, upon studying solutions of pyrene in water and an R-12 solvent for sorption and further recording of solid-phase luminescence, a hydrophobic polypropylene matrix is more suitable; however, in the case of the use of aqueous micellar solutions of sodium dodecyl sulfate, it is preferable to execute the sorption and observe the solid-phase luminescence of pyrene on a viscose matrix. The obtained results can be used for developing a highly sensitive method for the monitoring of the concentration of pyrene in various environments.