title: [Distribution Characteristics and Source Apportionment of n-Alkanes in Water from Yellow River in Henan Section].
abstract: To investigate the distributions and possible sources of n-alkanes in water and suspended particulate matter from Yellow River in Henan section, 26 water and suspended particulate matter samples were collected in August 2010 and 22 n-alkanes (C₁₄-C₃₆) were quantitatively determined by gas chromatography-mass spectrometer (GC-MS). Potential sources of n-alkanes were analyzed using different characteristic parameters. The results indicated that total concentrations of 22 n-alkanes were 521-5,843 ng · L⁻¹ with a mean concentration of 1,409 ng · L⁻¹, while the total amounts of n-alkanes in the suspended particulate matter were 463-11,142 ng · L⁻¹ with a mean value of 1,951 ng · L⁻¹. The composition profiles of n-alkanes in water showed unimodal distribution with a peak at C₂₅ in water. However, the composition characteristics of n-alkanes in SPM were of bimodal type, but still with the advantage of high carbon hydrocarbons peak at C₂₅. Results of characteristic parameters including CPI, TAR, OEP and % WaxCn showed that n-alkanes in the studied area were derived mainly from combustion of fossil fuel, while terrestrial higher plant played a role in the existence of n-alkanes in water and suspended particulate matter from Yellow River in Henan section.
authors.forename: Jing-lan
authors.initials: JL
authors.lastname: Feng
authors.forename: Nan-nan
authors.initials: NN
authors.lastname: Xi
authors.forename: Fei
authors.initials: F
authors.lastname: Zhang
authors.forename: Shu-hui
authors.initials: SH
authors.lastname: Liu
authors.forename: Jian-hui
authors.initials: JH
authors.lastname: Sun
mesh_terms: D000473:Alkanes / Q000032:analysis*; D002244:Carbon; D004784:Environmental Monitoring; D008401:Gas Chromatography-Mass Spectrometry; D006838:Hydrocarbons / Q000032:analysis; D052638:Particulate Matter / Q000032:analysis; D045483:Rivers / Q000737:chemistry*
chemical_list: D000473:Alkanes; D006838:Hydrocarbons; D052638:Particulate Matter; D002244:Carbon