Subtask 1.12 -- Solid-phase microextraction (SPME) coupled with optical spectroscopy for near real-time determination of fuel and related pollutants in water samples. Semi-annual report, January 1--June 30, 1996

摘要

The measurement of organic pollutants in water requires that samples be collected, transported to a laboratory, extracted (usually with large volumes of hazardous chlorinated solvents), and analyzed using chromatographic techniques. Such limitations make rapid determinations in the field (e.g., for emergency response and/or for survey investigations) very expensive, and with analytical turnaround times requiring several days. The objectives of this subtask include the following: evaluate the use of additional film-type sorbent media for spectroscopic clarity and sorption characteristics for organic pollutants related to fuel processing (e.g., fuel components, PAHs polycyclic aromatic hydrocarbons, PCBs polychlorinated biphenyls, chlorinated solvents), using both UV and FT-IR spectroscopy as detection methods; and construct prototype dipstick devices and demonstrate their analytical capabilities.