Polycyclic aromatic hydrocarbons(PAHs)and hydroxylated polycyclic aromatic hydrocarbons(OH-PAHs)were investigated in the soil of the Fildes Peninsula,Antarctica.Various analytes were detected,and the concentration of ...Polycyclic aromatic hydrocarbons(PAHs)and hydroxylated polycyclic aromatic hydrocarbons(OH-PAHs)were investigated in the soil of the Fildes Peninsula,Antarctica.Various analytes were detected,and the concentration of OH-PAHs was 0.3001.847 ng g 1 dry weight,with the dominant components being danthron and 1-hydroxy-phenanthrene.The relationship between soil total organic matter(TOM),OH-PAHs,and the parent PAHs in the soil was studied.No significant correlation was detected between the spatial distribution of OH-PAHs and the occurrence of PAHs,whereas a positive correlation with TOM was found.展开更多
Objective To identify suitable hydroxyl polycyclic aromatic hydrocarbons(OH-PAHs) for co-evaluation of internal exposure level of PAHs by simultaneous determination of a variety of OH-PAHs in urine. Methods The 24-h i...Objective To identify suitable hydroxyl polycyclic aromatic hydrocarbons(OH-PAHs) for co-evaluation of internal exposure level of PAHs by simultaneous determination of a variety of OH-PAHs in urine. Methods The 24-h individual particulate matter and morning展开更多
The reaction of a series of hydroxy-substituted polycyclic aromatic hydrocarbons(PAHs)with nitric oxide containing trace O 2 was carried out in CH 2Cl 2 at room temperature. The products identified by IR, NMR and HRMS...The reaction of a series of hydroxy-substituted polycyclic aromatic hydrocarbons(PAHs)with nitric oxide containing trace O 2 was carried out in CH 2Cl 2 at room temperature. The products identified by IR, NMR and HRMS indicate that the mono nitration at para- or ortho-position with respect to hydroxy group on the benzene ring occurred regioselectively. The reactions are assumed to be initiated by single electron transfer and the reaction intermediates may be resonance stabilized phenoxy-like radicals.展开更多
基金The research was supported by the National Natural Science Foundation of China(Grant nos.41976222,41406088 and 21377032)Open Fund for the Key Laboratory of Ocean-Atmospheric Chemistry and Global Change,State Oceanic Administration,China(Grant no.GCMAC1812)+2 种基金Open Fund for the State Key Laboratory of Environmental Chemistry and Ecotoxicology,China(Grant no.KF2018-05)National Key Research and Development Project of China(Grant no.2019YF0901104)We also thank Chinese Arctic and Antarctic Administration and Polar Research Institute of China for the arrangements during the 30th Chinese National Antarctic Research Expedition in 2014.
文摘Polycyclic aromatic hydrocarbons(PAHs)and hydroxylated polycyclic aromatic hydrocarbons(OH-PAHs)were investigated in the soil of the Fildes Peninsula,Antarctica.Various analytes were detected,and the concentration of OH-PAHs was 0.3001.847 ng g 1 dry weight,with the dominant components being danthron and 1-hydroxy-phenanthrene.The relationship between soil total organic matter(TOM),OH-PAHs,and the parent PAHs in the soil was studied.No significant correlation was detected between the spatial distribution of OH-PAHs and the occurrence of PAHs,whereas a positive correlation with TOM was found.
文摘Objective To identify suitable hydroxyl polycyclic aromatic hydrocarbons(OH-PAHs) for co-evaluation of internal exposure level of PAHs by simultaneous determination of a variety of OH-PAHs in urine. Methods The 24-h individual particulate matter and morning
文摘The reaction of a series of hydroxy-substituted polycyclic aromatic hydrocarbons(PAHs)with nitric oxide containing trace O 2 was carried out in CH 2Cl 2 at room temperature. The products identified by IR, NMR and HRMS indicate that the mono nitration at para- or ortho-position with respect to hydroxy group on the benzene ring occurred regioselectively. The reactions are assumed to be initiated by single electron transfer and the reaction intermediates may be resonance stabilized phenoxy-like radicals.
