Influence of Laser Wavelength on Laser-induced Breakdown Spectroscopy Applied to Semi-Quantitative Analysis of Trace-Elements in a Plant Sample |
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Authors: | ZHANG Da-Cheng MA Xin-Wen WEN Wei-Qiang ZHANG Peng-Ju ZHU Xiao-Long LI Bin LIU Hui-Ping |
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Institution: | Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 Graduate University of Chinese Academy of Sciences, Beijing 100049 |
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Abstract: | Laser-induced breakdown spectroscopy (LIBS) as a powerful analytical technique is applied to analyze trace-elements in fresh plant samples. We investigate the LIBS spectra of fresh holly leaves and observe more than 430 lines emitted from 25 elements and molecules in the region 230-438 nm. The influence of laser wavelength on LIBS applied to semi-quantitative analysis of trace-element contents in plant samples is studied. The results show that the UV laser has lower relative standard deviations and better repeatability for semi-quantitative analysis of trace-element contents in plant samples. This work may be helpful for improving the quantitative analysis power of LIBS applied to plant samples. |
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Keywords: | 32 30 Jc 32 80 Fb 42 62 Fi 52 38 Mf |
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