干旱区生态环境知识资源中心(Arid): The application of surface enhanced Raman scattering to the detection of asphaltic petroleum in sediment extracts: deconvolving three component-mixtures using look-up tables of entire surface enhanced Raman spectra

Arid

DOI	10.1039/c9ay01859j
	The application of surface enhanced Raman scattering to the detection of asphaltic petroleum in sediment extracts: deconvolving three component-mixtures using look-up tables of entire surface enhanced Raman spectra
	Bowden, Stephen A.; Taylor, Colin W.
通讯作者	Bowden, Stephen A.
来源期刊	ANALYTICAL METHODS
ISSN	1759-9660
EISSN	1759-9679
出版年	2019
卷号	11 期号:46 页码:5846-5856
英文摘要	The detection of asphaltic petroleum by surface enhanced Raman scattering (SERS) is uncomplicated, except in instances where the petroleum has been mixed with other components that also exhibit a strong Raman effect. Such a situation is common where, for example, petroleum is mixed with other naturally occurring materials in sedimentary environments. Sedimentary organic matter in deserts, on beaches, on continental shelves and in the deep sea may contain a variety of compound types that includes pigments and humic compounds, all of which are also amenable to surface enhanced Raman scattering, making the detection of asphaltic petroleum by SERS in these natural environments complicated. However, for a beach-sediment comprising sediment weathered from exhumed petroleum reservoirs and source rocks (naturally occurring sources of petroleum) it can be shown that the asphaltic component of a surface enhanced Raman spectra can be found by deconvolving asphaltene, humic acid and pigments using entire spectra. This is achieved by finding matches on look-up tables comprising entire spectra with varied contributions from different compounds. In using the entire spectra, subjectivity introduced by fitting individual curves to match multiple Raman bands is reduced, minimising the consequences of what can otherwise be a process that involves arbitrary decision making. Using this approach it can be shown that a SERS-assay of asphaltic materials in sediments from a foreshore in Northern Scotland can produce results that benchmark reasonably against standard methods, and data that yields interpretations of the natural environment that are consistent with that derived from comparator GC-MS data.
类型	Article
语种	英语
国家	Scotland
开放获取类型	Green Published, hybrid
收录类别	SCI-E
WOS记录号	WOS:000499478500001
WOS关键词	IDENTIFICATION ; SPECTROSCOPY ; CAROTENOIDS ; PAHS ; LIFE
WOS类目	Chemistry, Analytical ; Food Science & Technology ; Spectroscopy
WOS研究方向	Chemistry ; Food Science & Technology ; Spectroscopy
EI主题词	2019-12-14
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311715
作者单位	Univ Aberdeen, Sch Geosci, Aberdeen AB243UE, Scotland
推荐引用方式 GB/T 7714	Bowden, Stephen A.,Taylor, Colin W.. The application of surface enhanced Raman scattering to the detection of asphaltic petroleum in sediment extracts: deconvolving three component-mixtures using look-up tables of entire surface enhanced Raman spectra[J],2019,11(46):5846-5856.
APA	Bowden, Stephen A.,&Taylor, Colin W..(2019).The application of surface enhanced Raman scattering to the detection of asphaltic petroleum in sediment extracts: deconvolving three component-mixtures using look-up tables of entire surface enhanced Raman spectra.ANALYTICAL METHODS,11(46),5846-5856.
MLA	Bowden, Stephen A.,et al."The application of surface enhanced Raman scattering to the detection of asphaltic petroleum in sediment extracts: deconvolving three component-mixtures using look-up tables of entire surface enhanced Raman spectra".ANALYTICAL METHODS 11.46(2019):5846-5856.