title: [The composition of PAHs in fly ash in Beijing].
abstract: The composition of polycyclic aromatic hydrocarbons (PAHs) in fly ash samples which were gathered from manufacturing district of Shijingshan district and residential quarters of Haidian district were analyzed using HPLC/MS technique. The differences of the contents of PAHs in fly ash samples from manufacturing district and residential quarters were compared. The changes of the contents of PAHs of different seasons were discussed. In this study 135 PAHs including 55 large PAHs whose molecular weights are greater than 300u were detected in fly ash sample from manufacturing district. HPLC/MS offset the deficiency of GC/MS which can not determine large PAHs directly and can reflect the distribution of PAHs in fly ash more roundly.
authors.affiliation: Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
authors.forename: C
authors.initials: C
authors.lastname: Huang
authors.forename: W
authors.initials: W
authors.lastname: Xu
authors.forename: G
authors.initials: G
authors.lastname: Zhao
authors.forename: J
authors.initials: J
authors.lastname: Zhong
authors.forename: K
authors.initials: K
authors.lastname: Jiang
mesh_terms: D002244:Carbon / Q000032:analysis*; D002681:China; D002851:Chromatography, High Pressure Liquid; D060729:Coal Ash; D013058:Mass Spectrometry; D052638:Particulate Matter; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*
chemical_list: D060729:Coal Ash; D052638:Particulate Matter; D011084:Polycyclic Aromatic Hydrocarbons; D002244:Carbon