Source Identification of Oil Spills Using Compound-Specific Carbon Isotope Analysis Based on "7-16" Oil Spill in Dalian, China

TitleSource Identification of Oil Spills Using Compound-Specific Carbon Isotope Analysis Based on "7-16" Oil Spill in Dalian, China
Publication TypeJournal Article
Year of Publication2015
AuthorsWang M, Wang C, He S
JournalMaritime Oil Spill Response
Volume3
Pagination197-202
Date Published2015
ISBN Number2214-241X
Accession NumberWOS:000353450200025
KeywordsVarious Oil Spills
AbstractA set of sequentially weathered oils residue in sediments collected from Dalian Bay in different time after "7-16" oil spill accident, were analyzed by Gas chromatography-mass spectrometry (GC-MS) and Gas chromatography-isotope ratio mass spectrometry (GC-IRMS) to analyze the weathering process and evaluated the possibilities of GC-IRMS as a correlation tool in oil spill identification. Although some temporal variation was observed, no significant temporal shifts in the delta C-13 values for n-alkanes were measured in moderated weathered oils. The standard deviations of delta C-13 values of individual n-alkanes varied from 0.07% to 0.20%, which showed that the weathering has no significant effect on values of individual n-alkanes over 120 days. The results suggest that stable carbon isotope pro le of n-alkanes can be a useful tool for tracing the source of an oil spill, particularly for the weathered oils absence of sterane and terpane biomarkers. (C) 2015 The Authors. Published by Elsevier B.V.
DOI10.1016/j.aqpro.2015.02.211