Gondal Mohammed A, Hussain Talib, Ahmed Zulfiqar, Bakry Ahmed H
Laser Research Laboratory, Physics Department, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2007 Jun;42(7):879-87. doi: 10.1080/10934520701373075.
Laser-induced breakdown spectroscopy (LIBS) has been applied for the determination of contaminants present in ore samples. The plasma was generated by focusing a pulsed Nd:YAG laser radiation at 1064 nm wavelength on the ore sample collected from one of the open-pit mines located in Saudi Arabia. The concentrations in this ore sample of different elements of environmental significance like Cu, Cr, Ca, Mg, Zn, Ti, Si, Fe and Al were determined by spectral analysis. Parametric dependence for improvement of LIBS sensitivity was carried out. The LIBS results were compared with the results obtained using other analytical techniques such as the inductively coupled plasma emission spectroscopy (ICP-AES). Limits of detection (LOD) of our LIBS system were also calculated for the elements under investigation.
激光诱导击穿光谱法（LIBS）已被应用于测定矿石样品中的污染物。通过将波长为1064nm的脉冲Nd:YAG激光辐射聚焦在从沙特阿拉伯的一个露天矿采集的矿石样品上产生等离子体。通过光谱分析测定了该矿石样品中具有环境意义的不同元素（如铜、铬、钙、镁、锌、钛、硅、铁和铝）的浓度。进行了提高LIBS灵敏度的参数依赖性研究。将LIBS结果与使用其他分析技术（如电感耦合等离子体发射光谱法（ICP-AES））获得的结果进行了比较。还计算了我们的LIBS系统对所研究元素的检测限（LOD）。
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