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Choi, Sung-Deuk
Environmental Analytical Chemistry Lab (EACL)
Research Interests
  • Persistent organic pollutants, Environmental Analysis and monitoring, Multimedia modeling, Fine particle

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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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dc.contributor.author Quang Tran Vuong ko
dc.contributor.author Phan Quang Thang ko
dc.contributor.author Ohura, Takeshi ko
dc.contributor.author Choi, Sung-Deuk ko
dc.date.available 2020-05-29T00:39:42Z -
dc.date.created 2020-05-25 ko
dc.date.issued 2020-05 ko
dc.identifier.citation ATMOSPHERIC ENVIRONMENT, v.229, pp.117461 ko
dc.identifier.issn 1352-2310 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/32200 -
dc.description.abstract 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 (P-L) and octanol-air partition coefficients (K-OA) of 24 chlorinated and 11 brominated PAHs (C1PAHs and BrPAHs) were determined using the gas chromatographic retention time (GC-RT) technique. The temperature dependences of P(L )and K-OA 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 (Delta H-L) and internal energies of phase transfer (Delta U-OA) for all interested compounds. The activity of Halo-PAHs in octanol (gamma(oct)) 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 C1PAHs 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 P-L and K(OA )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 P (L) and K-OA values of Halo-PAHs at any temperature. ko
dc.language 영어 ko
dc.publisher PERGAMON-ELSEVIER SCIENCE LTD ko
dc.title 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 ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85083278519 ko
dc.identifier.wosid 000530031600016 ko
dc.type.rims ART ko
dc.identifier.doi 10.1016/j.atmosenv.2020.117461 ko
dc.identifier.url https://www.sciencedirect.com/science/article/pii/S1352231020301989?via%3Dihub ko
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