气候变化领域集成服务门户(CCPortal): Determining sub-cooled liquid vapor pressures and octanol-air partition coefficients for chlorinated and brominated polycyclic aromatic hydrocarbons based on gas chromatographic retention times: Application for gas/particle partitioning in air

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DOI	10.1016/j.atmosenv.2020.117461
	Determining sub-cooled liquid vapor pressures and octanol-air partition coefficients for chlorinated and brominated polycyclic aromatic hydrocarbons based on gas chromatographic retention times: Application for gas/particle partitioning in air
	Vuong Q.T.; Thang P.Q.; Ohura T.; Choi S.-D.
发表日期	2020
ISSN	1352-2310
卷号	229
英文摘要	Halogenated polycyclic aromatic hydrocarbons (Halo-PAHs) are a new group of PAH derivatives and are reported to be more toxic than their parent PAHs. However, limited research has been undertaken on their physicochemical properties. In this study, sub-cooled liquid vapor pressures (PL) and octanol–air partition coefficients (KOA) of 24 chlorinated and 11 brominated PAHs (ClPAHs and BrPAHs) were determined using the gas chromatographic retention time (GC-RT) technique. The temperature dependences of PL and KOA for the Halo-PAHs were determined by the slopes and intercepts of the linear regressions. The GC-RT method also provided the enthalpies of vaporization (ΔHL) and internal energies of phase transfer (ΔUOA) for all interested compounds. The activity of Halo-PAHs in octanol (γoct) ranging from 18 to 87, indicated the non-ideal solution behavior. The number of the chlorine atoms in the PAH rings could influence the interaction of ClPAHs with the organic matter, whereas this interaction for BrPAHs could not be studied due to the limited number of target BrPAHs. The measured values of PL and KOA were applied to investigate the gas/particle partition behaviors of Halo-PAHs in Ulsan, South Korea. This study is so far the first one to report the linear regression coefficients, which can be used to estimate the PL and KOA values of Halo-PAHs at any temperature. © 2020 Elsevier Ltd
英文关键词	Brominated PAH; Chlorinated PAH; Octanol-air; Partition; Vapor pressure
语种	英语
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/129531
作者单位	School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea; Faculty of Agriculture, Meijo University, Nagoya, 468-8502, Japan
推荐引用方式 GB/T 7714	Vuong Q.T.,Thang P.Q.,Ohura T.,et al. Determining sub-cooled liquid vapor pressures and octanol-air partition coefficients for chlorinated and brominated polycyclic aromatic hydrocarbons based on gas chromatographic retention times: Application for gas/particle partitioning in air[J],2020,229.
APA	Vuong Q.T.,Thang P.Q.,Ohura T.,&Choi S.-D..(2020).Determining sub-cooled liquid vapor pressures and octanol-air partition coefficients for chlorinated and brominated polycyclic aromatic hydrocarbons based on gas chromatographic retention times: Application for gas/particle partitioning in air.Atmospheric Environment,229.
MLA	Vuong Q.T.,et al."Determining sub-cooled liquid vapor pressures and octanol-air partition coefficients for chlorinated and brominated polycyclic aromatic hydrocarbons based on gas chromatographic retention times: Application for gas/particle partitioning in air".Atmospheric Environment 229(2020).