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DOI	10.1002/jrs.5667
	Quantification of fluorescence emission from extraterrestrial materials and its significance for planetary Raman spectroscopy
	Wang, Alian 1,2; Wei, Jie 1,2; Korotev, Randy L.1,2
通讯作者	Wang, Alian
来源期刊	JOURNAL OF RAMAN SPECTROSCOPY
ISSN	0377-0486
EISSN	1097-4555
出版年	2020
卷号	51 期号:9 页码:1636-1651
英文摘要	Fluorescence emission has been a serious impediment in the application of Raman spectroscopy to terrestrial geologic samples. It is largely unknown how significant the fluorescence problem would affect Raman analyses during a planetary surface exploration mission. We have completed a set of two experimental studies to quantitatively evaluate the fluorescence emission excited by multiple wavelengths from a set of 21 stony meteorites that represent 98.9% (by types) of all stony meteorites collected, named, and classified worldwide. Our data revealed a general trend, that is, the non-Raman emission intensities of extraterrestrial materials are two to three orders of magnitude lower than those of typical terrestrial clays and the soils from hyperarid Mars-analog region (Atacama Desert). Based on >4,500 Raman spectra (excited by continuous wave [continuous wave] 532-nm laser line) obtained by auto-scans on these 21 meteorites, we found that the average percentage of informative Raman spectra is nearly 98%, with a standard deviation of 2% and the lowest value of 93%. We also found that the information on major and minor mineral phases revealed by our multispots Raman measurements are consistent with those published in Meteoritic Bulletin database for the examined meteorites. In conclusion, our experimental results demonstrated that the fluorescence interference that sometimes concealed the Raman signals of terrestrial samples would not be a threat to planetary Raman spectroscopy that uses CW 532-nm laser line for excitation. This conclusion is consistent with the in situ fluorescence observations made during two missions on Mars and with many Raman spectroscopic studies of lunar rocks and soils returned by Apollo missions.
英文关键词	extraterrestrial materials fluorescence quantification green Raman system planetary science planetary Raman spectroscopy
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000479663300001
WOS关键词	MINERAL IDENTIFICATION ; MARTIAN METEORITE ; PARTICLES ; FEATURES ; MARS
WOS类目	Spectroscopy
WOS研究方向	Spectroscopy
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217309
作者单位	1.Washington Univ, Dept Earth & Planetary Sci, Rudolph Hall 338, St Louis, MO 63130 USA; 2.Washington Univ, McDonnell Ctr Space Sci, Rudolph Hall 338, St Louis, MO 63130 USA
推荐引用方式 GB/T 7714	Wang, Alian,Wei, Jie,Korotev, Randy L.. Quantification of fluorescence emission from extraterrestrial materials and its significance for planetary Raman spectroscopy[J],2020,51(9):1636-1651.
APA	Wang, Alian,Wei, Jie,&Korotev, Randy L..(2020).Quantification of fluorescence emission from extraterrestrial materials and its significance for planetary Raman spectroscopy.JOURNAL OF RAMAN SPECTROSCOPY,51(9),1636-1651.
MLA	Wang, Alian,et al."Quantification of fluorescence emission from extraterrestrial materials and its significance for planetary Raman spectroscopy".JOURNAL OF RAMAN SPECTROSCOPY 51.9(2020):1636-1651.