Analysis of polycyclic aromatic hydrocarbons using porous material MCM-41 as a sorbent

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题名:	Analysis of polycyclic aromatic hydrocarbons using porous material MCM-41 as a sorbent
作者:	歐陽長風;Ou-Yang, Chang-Feng;Liu, Jin-Yu;Kao, Hsien-Ming;Wang, Jei-Hung;Liu, Shi-Ping;Wang, Jia-Lin
贡献者:	理學院化學學系
关键词:	analytical methods;Buses (vehicles);Exhaust;fluorenes;motorcycles;Naphthalene;Phenanthrene;phenanthrenes;Polycyclic aromatic hydrocarbons;Porous materials;porous media;quality control;Recovery;silicates;Sorbents;sorption
日期:	2013-12-07
上传时间:	2026-04-21 14:17:18 (UTC+8)
出版者:	Royal Society of Chemistry
摘要:	摘要： The feasibility of employing the mesoporous silicate MCM-41 as a sorbent for sampling ambient polycyclic aromatic hydrocarbons (PAHs) was investigated. The performance of MCM-41 as a sorbent for PAHs was assessed by using standard mixtures and field sampling of seven target species: naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, fluoranthene, and pyrene. Quality assurance measurements, such as analytical precision, linearity, and recovery, were determined viaaddition of external, surrogate, and internal standards. To test the field applicability of MCM-41, the exhaust of motorcycle and diesel bus were sampled as the sources of PAHs. The performance of MCM-41, which was evaluated against that of commercially available sorbents XAD-2 and XAD-16, showed comparable results. In the case of four-stroke motorcycle exhaust, both MCM-41 and XAD-2 exhibited similar sorption characteristics for the seven target PAHs at concentrations of 15 to 2.8 10 super(5) ng m super(-3) in the exhaust. Diesel bus exhaust sampled through a dynamometer was examined using commercial XAD-16 as the reference. The concentrations of naphthalene, acenaphthylene, acenaphthene, fluorene, and phenanthrene were found to be in the range of 10 to 2.5 10 super(4) ng m super(-3). Other than naphthalene, which had a low recovery (20-30%) because of its high volatility, the recoveries of MCM-41 for most target PAHs show a trend similar to those of the XAD materials in the study, demonstrating the high applicability of MCM-41 as an enrichment medium for ambient PAHs. 出版日期： 2013-01-01 出處： Analytical methods, 2013-01, Vol.5 (23), p.6874-6880 資源來源： Royal Society of Chemistry 識別號： ISSN: 1759-9660 識別號： ISSN: 1759-9679 識別號： EISSN: 1759-9679 識別號： DOI: 10.1039/c3ay41172a
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