| 基于激光诱导击穿光谱技术对钢中Mn和Cr元素的定量分析 |
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| 作者姓名： | Wang Q Chen XL Yu RH Xu MM Yang Y Wu B Ni ZB Dong FZ |
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| 作者单位： | 1. 中国科学院安徽光学精密机械研究所,安徽合肥,230031
2. 合肥工业大学应用物理系,安徽合肥,230009 |
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| 基金项目： | 国家自然科学基金项目(11075184)资助 |
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| 摘 要： | 采用激光诱导击穿光谱分析技术对钢样中锰、铬两种微量元素的含量进行了测量.实验研究发现,最优取样的延迟时间为2.0μs,最佳激光光束聚焦位置和光谱收集探头分别位于样品表面以下3.5mm和表面以上1.5mm处.以Mn Ⅰ:403.07 nm和Cr Ⅰ:427.48 nm作为分析线,分别采用传统定量分析和内定标的方法对钢样中...
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| 关 键 词： | 激光诱导击穿光谱 传统定标 内定标 |
Quantitative analysis of Mn, Cr in steel based on laser-induced breakdown spectroscopy |
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| Wang Q,Chen XL,Yu RH,Xu MM,Yang Y,Wu B,Ni ZB,Dong FZ.Quantitative analysis of Mn, Cr in steel based on laser-induced breakdown spectroscopy[J].Spectroscopy and Spectral Analysis,2011,31(9):2546-2551. |
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| Authors: | Wang Qi Chen Xing-Long Yu Rong-Hua Xu Ming-Ming Yang Yang Wu Bian Ni Zhi-Bo Dong Feng-Zhong |
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| Institution: | WANG Qi1,CHEN Xing-long1,YU Rong-hua2,XU Ming-ming1,YANG Yang1,WU Bian1,NI Zhi-bo1,DONG Feng-zhong1 1.Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China 2.Department of Applied Physics,Hefei University of Technology,Hefei 230009,China |
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| Abstract: | Quantitative analysis of trace elements such as manganese and chromium in steel was performed employing laser-induced breakdown spectroscopy (LIBS) technique in the present paper. The experimental measurements indicate that the optimal delay, focal plane and detecting position from the sample surface are 2 micros, -3.5 mm and 1.5 mm,respectively. Mn I: 403.07 nm and Cr I : 427.48 nm were selected as the analytical lines and their contents in the target steel sample were analyzed with traditional quantitative analysis and internal standard methods. Comparison of the results with two kinds of quantitatively analytical methods show that the coefficients of determination gained by internal standard method are 0.998 and 0.979 which are much better than the results obtained by traditional quantitative analysis method. According to the established calibration curve by internal standard method the detection limits of manganese and chromium calculated are 0.005% and 0.040 6%, respectively. |
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| Keywords: | Laser-induced breakdown spectroscopy(LIBS) Traditional quantitative analysis method Internal standard method |
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