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Humidity-Induced Spectral Shift in a Cross-Dispersion Echelle Spectrometer and Its Theoretical Investigation | |
Alternative Title | Spectrosc. Spectr. Anal. |
Liu Ke-ling1; Huang Mao2; Gary, Hieftje M.3 | |
2010-09-01 | |
Source Publication | SPECTROSCOPY AND SPECTRAL ANALYSIS |
ISSN | 1000-0593 |
Volume | 30Issue:9Pages:2555-2559 |
Abstract | 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.; 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. |
Keyword | Emission Spectrometry Position Shift Of a Spectral Line Spectral-shift Equation |
Subtype | Article |
WOS Headings | Science & Technology ; Technology |
DOI | 10.3964/j.issn.1000-0593(2010)09-2555-05 |
URL | 查看原文 |
Indexed By | SCI |
Language | 英语 |
WOS Research Area | Spectroscopy |
WOS Subject | Spectroscopy |
WOS ID | WOS:000281661000057 |
Citation statistics | |
Document Type | 期刊论文 |
Version | 出版稿 |
Identifier | http://ir.ipe.ac.cn/handle/122111/6366 |
Collection | 研究所（批量导入） |
Affiliation | 1.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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