Abstract：Laser-induced breakdown spectrometric (LIBS) determination is susceptible to various experimental conditions, so that the acquired relative standard deviation of its experimental data is large, causing poor precision of the successive qualitative analysis. In this paper, the intensity of the characteristic line of Si, Cr, Mn and Fe was determined by LIBS for the purpose of systematically studying the factors that may cause data fluctuation, such as, laser energy and frequency, acquisition position, and focal depth. It was found that the stability of laser energy, proper focal depth, etc., all can be effective means for enhancing sensitivity and reducing the relative standard deviation (RSD) while the variation of signal acquisition position and angle has little effect.
辛 勇，孙兰香，丛智博，杨志家. 激光诱导击穿光谱实验数据波动性的影响因素研究[J]. 冶金分析, 2012, 32(10): 16-20.
XIN Yong, SUN Lan-xiang, CONG Zhi-bo, YANG Zhi-jia. An experimental study on the factors causing data fluctuation of laser-induced breakdown spectrometric determination. , 2012, 32(10): 16-20.
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