| DOI: | 10.2172/1070069
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| 报告号: | DOE/ER15771-1
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| 报告题名: | Using comprehensive two-dimensional gas chromatography to explore the geochemistry of the Santa Barbara oil seeps |
| 作者: | Reddy, Christopher; Nelson, Robert
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| 出版年: | 2013
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| 发表日期: | 2013-03-27
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| 国家: | 美国
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| 语种: | 英语
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| 英文关键词: | 02 - Petroleum
; 54 - Environmental Sciences
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| 中文主题词: | 碳氢化合物/烃类
; 石油
; 地球化学
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| 主题词: | HYDROCARBONS
; PETROLEUM
; GEOCHEMISTRY
|
| 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. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1070069
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| Citation statistics: |
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/41210
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| 1070069.pdf（9133KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Reddy, Christopher,Nelson, Robert. Using comprehensive two-dimensional gas chromatography to explore the geochemistry of the Santa Barbara oil seeps. 2013-01-01.
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