期刊
TALANTA
卷 80, 期 2, 页码 730-737出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2009.07.063
关键词
Indoor air; Building material; VOC; SPME; Passive sampling; Emission cell
资金
- ADEME (Agency for Environment and Energy Management)
- Aquitaine Region Council
The FLEC (R)-SPME sampler, described in a previous paper, consists of an emission cell coupled with solid phase microextraction (SPME) for passive sampling of VOCs emitted from building materials. It represents an interesting alternative to standard dynamic sampling protocol as it is easier to implement. If standard dynamic sampling determines emission rates, passive FLEC (R)-SPME aims to the determination of the concentration in air at the material surface. That could be assumed provided that material/air equilibrium is reached. Thus, VOCs emission kinetics were studied for 3 different materials (pine wood panel, carpet and PVC floor) to determine equilibrium times. Then, the relevance of the method has been assessed using new materials through a 3-day emission test. Qualitative results were compared to those obtained from the standard method to check the ability of FLEC (R)-SPME to detect the most toxic compounds, named VOCs of interest and listed in the French regulation. Minor differences were observed, so this methodology seems promising, especially for field studies aiming in the identification of VOCs sources in buildings. Moreover, the concentration at the material surface combined to emission modeling could be used to predict indoor VOCs concentrations helping in indoor air quality diagnostic. (C) 2009 Elsevier B.V. All rights reserved.
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