| ATOMIC AND MOLECULAR PHYSICS |
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Influence of Laser Wavelength on Laser-induced Breakdown Spectroscopy Applied to Semi-Quantitative Analysis of Trace-Elements in a Plant Sample |
ZHANG Da-Cheng1,2, MA Xin-Wen1, WEN Wei-Qiang1,2, ZHANG Peng-Ju1,2, ZHU Xiao-Long1, LI Bin1,2, LIU Hui-Ping1 |
| 1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 2Graduate University of Chinese Academy of Sciences, Beijing 100049 |
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| Cite this article: |
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ZHANG Da-Cheng, MA Xin-Wen, WEN Wei-Qiang et al 2010 Chin. Phys. Lett. 27 063202 |
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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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Received: 20 January 2010
Published: 25 May 2010
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