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This digital document is a journal article from Environmental Pollution, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
A preliminary evaluation of compound-specific isotope analysis (CSIA) as a novel, alternative method for identifying source correlation compounds in soils contaminated with residual heavy or weathered petroleum wastes is presented. Oil-contaminated soil microcosms were established using soil (sandy-loam, non-carbonaceous gley) amended with ballast-, crude- or No.6 fuel oil. Microcosms were periodically sampled over 256days and @d^1^3C values (which express the ratio of ^1^3C to ^1^2C) determined at each time point for five n-alkanes and the isoprenoid norpristane using gas chromatography-isotope ratio mass spectrometry (GC-IRMS). Although some temporal variation was observed, no significant temporal shifts in the @d^1^3C values for the five n-alkanes were measured in all three oils. Isoprenoid isotope ratios (@d^1^3C) appeared to be least affected by biotransformation, especially in the No.6 fuel oil. The research suggests that the @d^1^3C of isoprenoids such as norpristane, may be of use as source correlation parameters.
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