光谱学与光谱分析 |
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Research on the Analytical Line Auto-Selection for Quantitative Analysis of Materials with Laser-Induced Breakdown Spectroscopy |
DU Zhen-hui1, MENG Fan-li1, LI Jin-yi1, MA Yi-wen1, SUN Lan-xiang2, CONG Zhi-bo2, XIN Yong2 |
1. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China 2. Key Laboratory of Industrial Informatics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China |
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Abstract To realize auto-selection of analytical lines for quantitative analysis of materials with laser-induced breakdown spectroscopy, two parameters, i.e. the relative detected-to-theory intensity ratio (RDTIR) and wavelength difference of detected and theory (WDDT) were defined. The spectral lines seriously disturbed by self-absorption and spectral interference were excluded automatically by setting reasonable thresholds of RDTIR and WDDT. By analyzing the experimental data of high-alloy steel (GBW01605), the analytical lines of iron (Fe), chromium (Cr), nickel (Ni), manganese (Mn) and copper (Cu) were selected, and the results were in line with the principle of lines selection.
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Received: 2011-09-01
Accepted: 2011-12-28
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Corresponding Authors:
DU Zhen-hui
E-mail: duzhenhui@tju.edu.cn
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