| 光谱学与光谱分析 |
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| Study on Analytic Precision of Laser Microemission Spectral Analysis in Argon Atmosphere at Reduced Pressure |
| GUO Qing-lin1 , ZHANG Bo1, ZHANG Jin-ping1, WANG Lan-xun2, CHEN Jin-zhong1 |
1. College of Physics Science and Technology, Hebei University, Baoding 071002, China
2. College of Electronic and Informational Engineering, Hebei University, Baoding 071002, China |
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Abstract According to mathematic statistics, data for laser microemission spectroscopic analysis were selected, which were collected with the use of CCD (charge-coupled device) in argon atmosphere at reduced pressure. By selection, the effects of some factors, such as the difference of bore ablated on the sample surface by the laser, the distribution nonuniformity of element in the sample, and the fluctuation of output energy of the laser, etc. were reduced. The method that improves analytic precision of laser microemission spectroscopic analysis was studied. And quantitative analysis of Cu, Zn and Mg in aluminum alloy standard samples was performed, using the Cu(Ⅰ) line at 324.7 nm , the Zn(Ⅰ) line at 334.5 nm, and the Mg(Ⅰ) line at 383.8 nm. The results show that the RSDs of relative intensity of the spectral lines of Cu, Zn, Mg are 1.80%，4.35% and 6.29% respectively, and the RSDs of quantitative analysis of them are 10.1%, 6.98% and 8.17% respectively. The relative errors of the average of analysis of them are -3.76%，3.62% and -1.62% respectively.
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Received: 2003-06-16
Accepted: 2003-11-26
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Corresponding Authors:
GUO Qing-lin
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| Cite this article: |
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GUO Qing-lin,ZHANG Bo,ZHANG Jin-ping, et al. Study on Analytic Precision of Laser Microemission Spectral Analysis in Argon Atmosphere at Reduced Pressure [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(03): 447-449.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2005/V25/I03/447 |
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