ID | 114439 |
著者 |
Cui, Minchao
Xi’an Jiaotong University|Tokushima University
Wang, Zhenzhen
Tokushima University|Xi’an Jiaotong University
Tanaka, Seiya
Tokushima University
Fujita, Yuki
Tokushima University
Zhao, Shengdun
Xi’an Jiaotong University
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キーワード | long-short DP-LIBS
steel
manganese
improvement
analytical performance
quantitative analysis
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資料タイプ |
学術雑誌論文
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抄録 | A long-short double pulse laser-induced breakdown spectroscopy (long-short DP-LIBS) method was employed to improve the performance of LIBS for the measurement of manganese in steel samples. The long pulse was generated by a Nd:YAG laser which was operated at free runing (FR) mode. To investigate the detection ability without sample preparation, the steel washers were tested using SP-LIBS and long-short DP-LIBS, respectively. The measurement results show that the long-short DP-LIBS method was able to record clear spectra from the rusty steel washers. The steel washers were also measured after the polishing process. The measurement results show that the signal intensity was enhanced by long-short DP-LIBS. Through the observation with scanning electron microscope (SEM) on the laser craters, the results suggest that the improvement of detection ability can be attributed to the pre-radiation effect of long-pulse laser beam. Next, the analytical performance for quantitative measurement of manganese was evaluated by employing ten standard steel samples. The results show that the linearty fit (R2) of calibration curve is 0.988 for long-short DP-LIBS, whereas, R2 is only 0.810 for SP-LIBS under the same measurement conditions. The five times repeated measurement results show that the average Relative Standard Deviation (RSD) of the tested samples is 29.3% for SP-LIBS and is 10.5% for long-short DP-LIBS. The prediction results also show that the average Relative Error of Prediction (REP) is 94.9% for SP-LIBS and it 4.9% for long-short DP-LIBS. The experimental results in current work demonstrate that long-short DP-LIBS is promising for the on line measurement of steel in the steelmaking plant.
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掲載誌名 |
Applied Spectroscopy
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ISSN | 00037028
19433530
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cat書誌ID | AA00543544
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出版者 | Society for Applied Spectroscopy|SAGE Publishing
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巻 | 73
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号 | 2
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開始ページ | 152
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終了ページ | 162
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発行日 | 2018-09-28
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権利情報 | Minchao Cui, Yoshihiro Deguchi, Zhenzhen Wang, Seiya Tanaka, Yuki Fujita, Shengdun Zhao, Improved Analysis of Manganese in Steel Samples Using Collinear Long–Short Double Pulse Laser-Induced Breakdown Spectroscopy (LIBS), Applied Spectroscopy (Volume: 73 issue: 2) pp. 152-162 . Copyright ©2018 SAGE Publications. DOI: 10.1177/0003702818803943.
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言語 |
eng
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著者版フラグ |
著者版
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部局 |
理工学系
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