title: Application of hollow fiber liquid-phase microextraction in identification of oil spill sources.
abstract: In this study, hollow fiber based liquid-phase microextraction (HF-LPME), coupled with GC, GC-MS and GC-IRMS detections, was employed to determine petroleum hydrocarbons in spilled oils. According to the results, the HF-LPME method collected more low-molecular weight components, such as C(7)-C(11)n-alkanes, naphthalene, and phenanthrene, than those collected in conventional liquid-liquid extraction (LLE). The results also showed that this method had no remarkable effect on the distributions of high-molecular weight compounds such as >C(18)n-alkanes, C(1)-C(3) phenanthrene, and hopanes. Also, the carbon isotopic compositions of individual n-alkanes in the two preparation processes were identical. Accordingly, HF-LPME, as a simple, fast, and inexpensive sample preparation technique, could become a promising method for the identification of oil spill sources.
authors: State Key Laboratory of Organic Geochemistry (SKLOG), Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
authors: Yun
authors: Y
authors: Li
authors: Yongqiang
authors: Y
authors: Xiong
authors: Jidun
authors: J
authors: Fang
authors: Lifang
authors: L
authors: Wang
authors: Qianyong
authors: Q
authors: Liang
mesh_terms: D053000:Analytic Sample Preparation Methods / Q000379:methods*; D004785:Environmental Pollutants / Q000032:analysis*; D044707:Forensic Sciences; D008401:Gas Chromatography-Mass Spectrometry; D010578:Petroleum / Q000032:analysis*; D011145:Polyvinyls; D005465:Fluorocarbon Polymers
chemical_list: D004785:Environmental Pollutants; D010578:Petroleum; D011145:Polyvinyls; C024865:polyvinylidene fluoride; D005465:Fluorocarbon Polymers