Using LIBS for Heavy Metal Detection in Water Combined with Graphite Enrichment and Spatial Confinement

doi:10.3964/j.issn.1000-0593(2017)05-1525-05

	Using LIBS for Heavy Metal Detection in Water Combined with Graphite Enrichment and Spatial Confinement
	Wang Yuan-yuan; Zhao Nan-jing; Ma Ming-jun; Yu Yang; Meng De-shuo; Gu Yan-hong; Jia Yao; Liu Jian-guo; Liu Wen-qing
	2017-05-01
发表期刊	SPECTROSCOPY AND SPECTRAL ANALYSIS
摘要	According to the need of heavy metal pollution detection in waste water. Pure graphite flake is selected as matrix material, the LIBS method of multiple enrichment of samples combined with spatial confinement is adopted to detect the heavy metals contained in the waste water, and spectral stability and limit of detection of Pb, Cu, Cd and Ni are also analyzed. The experiments uses a wavelength of 1 064 nm Nd : YAG Laser, and a optical spectrometer, which the resolution is less than 0. 1 nm to detect the characteristic spectrum of heavy metal elements content in water. The result shows that this method serves to improve sensitivity and spectral stability of heavy metal in waste water while reducing the limit of detection of heavy metals. The intensity of characteristic spectrum are about 2. 5 times better than it under the condition of non-confinement, the spectral stability has also been improved, RSD is reduced from 11.34% to 8.77% compared with non-confinement condition. The calibration curves of four heavy metal elements have been established, the limits of detection of Pb, Cu, Cd and Ni are lower than 1/6 of discharge standard of national industrial waste water, meeting the demand of heavy metal in industrial waste water online monitoring. This method provides a convincing support for discharge control and online monitoring of warning excessive discharge of heavy metal elements in industrial waste water.
文章类型	Article
关键词	Lies Spatial Confinement Enrichment Of Graphite Heavy Metal In Water
WOS标题词	Science & Technology ; Technology
DOI	10.3964/j.issn.1000-0593(2017)05-1525-05
关键词[WOS]	INDUCED BREAKDOWN SPECTROSCOPY ; CHROMIUM ; CHINA
收录类别	SCI
语种	英语
WOS研究方向	Spectroscopy
WOS类目	Spectroscopy
WOS记录号	WOS:000401880000035
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/31885
专题	中科院安徽光学精密机械研究所
作者单位	Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Key Lab Opt Monitoring Technol Environm, Hefei 230031, Anhui, Peoples R China
第一作者单位	中科院安徽光学精密机械研究所
推荐引用方式 GB/T 7714	Wang Yuan-yuan,Zhao Nan-jing,Ma Ming-jun,et al. Using LIBS for Heavy Metal Detection in Water Combined with Graphite Enrichment and Spatial Confinement[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2017,37(5):1527-1531.
APA	Wang Yuan-yuan.,Zhao Nan-jing.,Ma Ming-jun.,Yu Yang.,Meng De-shuo.,...&Liu Wen-qing.(2017).Using LIBS for Heavy Metal Detection in Water Combined with Graphite Enrichment and Spatial Confinement.SPECTROSCOPY AND SPECTRAL ANALYSIS,37(5),1527-1531.
MLA	Wang Yuan-yuan,et al."Using LIBS for Heavy Metal Detection in Water Combined with Graphite Enrichment and Spatial Confinement".SPECTROSCOPY AND SPECTRAL ANALYSIS 37.5(2017):1527-1531.

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