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Humidity-Induced Spectral Shift in a Cross-Dispersion Echelle Spectrometer and Its Theoretical Investigation
Alternative TitleSpectrosc. Spectr. Anal.
Liu Ke-ling1; Huang Mao2; Gary, Hieftje M.3
2010-09-01
Source PublicationSPECTROSCOPY AND SPECTRAL ANALYSIS
ISSN1000-0593
Volume30Issue:9Pages:2555-2559
AbstractThe relationship between ambient relative humidity H and the position shift of a spectral line was investigated both experimentally and theoretically. An echelle-based ICP emission spectrometer equipped with a CID detector was used for experimental verification of the derived model. The shift of a spectral line is quantitatively described by two defined spectral shift functions: Delta lambda(x) (x, lambda, H) (in the x direction of the CID detector) and Delta lambda(y) (y, lambda, H) (in the y direction of the CID detector). Experimental results indicate that Delta lambda(x) (x, lambda, H) does not change with a variation in ambient relative humidity, but Delta lambda(y) (y, lambda, H) does. A spectral shift equation, i. e. an empirical second-order polynomial equation, can be used to describe the relationship between Delta lambda(y) (y, lambda, H) and H. Based on the classical dipole model, classical mechanics and electrodynamics the empirical spectral-shift equation involving Delta lambda(y) (y, lambda, H) and H was theoretically deduced. The theoretical result is in good agreement with the experimental findings. The theoretical result's indicate that the coefficients of the empirical spectral-shift equation are related to the basic physical parameters of materials and the geometric configuration of the echelle CID ICP-AES, and also provide physical meaning to the coefficients of the empirical shift equation obtained experimentally.; The relationship between ambient relative humidity H and the position shift of a spectral line was investigated both experimentally and theoretically. An echelle-based ICP emission spectrometer equipped with a CID detector was used for experimental verification of the derived model. The shift of a spectral line is quantitatively described by two defined spectral shift functions: Delta lambda(x) (x, lambda, H) (in the x direction of the CID detector) and Delta lambda(y) (y, lambda, H) (in the y direction of the CID detector). Experimental results indicate that Delta lambda(x) (x, lambda, H) does not change with a variation in ambient relative humidity, but Delta lambda(y) (y, lambda, H) does. A spectral shift equation, i. e. an empirical second-order polynomial equation, can be used to describe the relationship between Delta lambda(y) (y, lambda, H) and H. Based on the classical dipole model, classical mechanics and electrodynamics the empirical spectral-shift equation involving Delta lambda(y) (y, lambda, H) and H was theoretically deduced. The theoretical result is in good agreement with the experimental findings. The theoretical result's indicate that the coefficients of the empirical spectral-shift equation are related to the basic physical parameters of materials and the geometric configuration of the echelle CID ICP-AES, and also provide physical meaning to the coefficients of the empirical shift equation obtained experimentally.
KeywordEmission Spectrometry Position Shift Of a Spectral Line Spectral-shift Equation
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.3964/j.issn.1000-0593(2010)09-2555-05
URL查看原文
Indexed BySCI
Language英语
WOS Research AreaSpectroscopy
WOS SubjectSpectroscopy
WOS IDWOS:000281661000057
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Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6366
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
2.Lib Chinese Acad Sci, Beijing 100190, Peoples R China
3.Indiana Univ, Dept Chem, Bloomington, IN 47405 USA
Recommended Citation
GB/T 7714
Liu Ke-ling,Huang Mao,Gary, Hieftje M.. Humidity-Induced Spectral Shift in a Cross-Dispersion Echelle Spectrometer and Its Theoretical Investigation[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2010,30(9):2555-2559.
APA Liu Ke-ling,Huang Mao,&Gary, Hieftje M..(2010).Humidity-Induced Spectral Shift in a Cross-Dispersion Echelle Spectrometer and Its Theoretical Investigation.SPECTROSCOPY AND SPECTRAL ANALYSIS,30(9),2555-2559.
MLA Liu Ke-ling,et al."Humidity-Induced Spectral Shift in a Cross-Dispersion Echelle Spectrometer and Its Theoretical Investigation".SPECTROSCOPY AND SPECTRAL ANALYSIS 30.9(2010):2555-2559.
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