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自由定标激光诱导击穿光谱技术在炉渣成分定量分析中的应用
作者姓名:Chen XL  Dong FZ  Wang Q  Yu RH  Liang YX  Wang JG  Yang Y  Ni ZB  Xu MM  Wu B
作者单位:1. 中国科学院合肥物质科学研究院安徽光学精密机械研究所,安徽合肥,230031
2. 合肥工业大学电子科学与应用物理学院,安徽合肥,230009
基金项目:国家自然科学基金项目(11075184); 中国科学院合肥物质科学研究院知识创新工程领域前沿项目(Y03RC21124)资助
摘    要:采用自由定标激光诱导光谱技术(CF-LIBS)对炉渣中几种主要成分(CaO,SiO2,Al2O3,MgO)进行了定量分析.利用Nd:YAG激光脉冲在空气中烧蚀炉渣样品产生等离子体,等离子体光谱由中阶梯光栅光谱仪记录.通过几种主要元素的原子谱线和离子谱线的玻尔兹曼图,计算了等离子体的温度.利用Ca的一条谱线Stark展宽...

关 键 词:自由定标  激光诱导击穿光谱  炉渣  定量分析  多元素分析

Quantitative analysis of slag by calibration-free laser-induced breakdown spectroscopy
Chen XL,Dong FZ,Wang Q,Yu RH,Liang YX,Wang JG,Yang Y,Ni ZB,Xu MM,Wu B.Quantitative analysis of slag by calibration-free laser-induced breakdown spectroscopy[J].Spectroscopy and Spectral Analysis,2011,31(12):3289-3293.
Authors:Chen Xing-long  Dong Feng-zhong  Wang Qi  Yu Rong-hua  Liang Yun-xian  Wang Jing-ge  Yang Yang  Ni Zhi-bo  Xu Ming-ming  Wu Bian
Institution:CHEN Xing-long1,DONG Feng-zhong1,WANG Qi1,YU Rong-hua2,LIANG Yun-xian1,WANG Jing-ge1,YANG Yang1,NI Zhi-bo1,XU Ming-ming1,WU Bian1 1.Anhui Institute of Optics & Fine Mechanics,Hefei Institute of Physical Science,Chinese Academy of Sciences,Hefei 230031,China 2.School of Electronic Science & Applied Physics,Hefei University of Technology,Hefei 230009,China
Abstract:Calibration-free laser induced breakdown spectroscopy (CF-LIBS) was employed for the quantitative analysis of slag. Nd:YAG laser ablation was performed in air. The laser-induced plasma emission was measured by an Echelle spectrometer equipped with an ICCD. The plasma temperature and electron number density were determined from Boltzmann plots and a Ca I line width, respectively. The assumption of local thermal equilibrium was validated by the Ne criterion. The concentration of oxides was obtained from the concentration of elements by using stoichiometric relation. The calculated oxide concentrations were compared with those obtained by XRF. The relative errors of major elements were less than 15%. The results indicate that this method can be employed for the analysis of major elements in multi-component complex materials without certified reference.
Keywords:Calibration free  Laser-induced breakdown spectroscopy(LIBS)  Slag  Quantitative analysis  Multi-elements analysis  
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