A New Approach for Diffusive Sampling Based on SPME for Occupational Exposure Assessment

摘要: Passive sampling is a well-established methodology for the evaluation of exposures to environmental volatile organic compounds (VOCs). The solid-phase microextraction (SPME) technique reliable means VOCs in air. SPME also being applied as passive sampler determine time-weighted average exposure. use diffusive was evaluated. based on cylindrical diffusion cell (porous hydrophobic polyethylene) with an 80 μm carboxen/polydimethylsiloxane fiber obtain radial analytes sorbent. Standard atmospheres vapors air were used experimental uptake rates toluene and chlorobenzene. Toluene concentrations between 2 38 mg/m3 times 15 60 min evaluated, well chlorobenzene 47 mg/m3 30 60 min. mean rate 2.14 mL/min 2.57 mL/min chlorobenz...