Using comprehensive two-dimensional gas chromatography to explore the geochemistry of the Santa Barbara oil seeps

doi:10.2172/1070069

GSTDTAP > 地球科学

DOI	10.2172/1070069
报告编号	DOE/ER15771-1
来源ID	OSTI ID: 1070069
	Using comprehensive two-dimensional gas chromatography to explore the geochemistry of the Santa Barbara oil seeps
	Reddy, Christopher; Nelson, Robert
	2013-03-27
出版年	2013
语种	英语
国家	美国
领域	地球科学
英文摘要	The development of comprehensive two-dimensional gas chromatography (GC x GC) has expanded the analytical window for studying complex mixtures like oil. Compared to traditional gas chromatography, this technology separates and resolves at least an order of magnitude more compounds, has a much larger signal to noise ratio, and sorts compounds based on their chemical class; hence, providing highly refined inventories of petroleum hydrocarbons in geochemical samples that was previously unattainable. In addition to the increased resolution afforded by GC x GC, the resulting chromatograms have been used to estimate the liquid vapor pressures, aqueous solubilities, octanol-water partition coefficients, and vaporization enthalpies of petroleum hydrocarbons. With these relationships, powerful and incisive analyses of phase-transfer processes affecting petroleum hydrocarbon mixtures in the environment are available. For example, GC x GC retention data has been used to quantitatively deconvolve the effects of phase transfer processes such as water washing and evaporation. In short, the positive attributes of GC x GC-analysis have led to a methodology that has revolutionized the analysis of petroleum hydrocarbons. Overall, this research has opened numerous fields of study on the biogeochemical "genetics" (referred to as petroleomics) of petroleum samples in both subsurface and surface environments. Furthermore, these new findings have already been applied to the behavior of oil at other seeps as well, for petroleum exploration and oil spill studies.
英文关键词	02 - Petroleum 54 - Environmental Sciences
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来源平台	US Department of Energy (DOE)
引用统计
文献类型	科技报告
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/6388
专题	地球科学
推荐引用方式 GB/T 7714	Reddy, Christopher,Nelson, Robert. Using comprehensive two-dimensional gas chromatography to explore the geochemistry of the Santa Barbara oil seeps,2013.