Effect of spatial confinement of carbon sheets on the soil plasma radiation characteristics

被引：0
作者：
机构：
[1] College of Physics Science and Technology, Hebei University, Baoding
来源：
Chen, J. (chenjinzhongcn@126.com) | 1600年 / Science Press卷 / 40期
关键词：
Carbon sheets confinement; Laser-induced breakdown spectroscopy; Signal-to-noise ratio; Soil; Spectral intensity; Spectroscopy;
D O I：
10.3788/CJL201340.0115002
中图分类号：
学科分类号：
摘要：
Boltzmann graph method and Stark broadening. Experimental results indicate that the plasma radiation intensity is significantly enhanced when the plasma is confined by carbon sheets, compared with no carbon sheets confinement. As the height of carbon sheets from the sample surface increases, the plasma radiation intensity gradually increases, peaks at 11 mm and then decreases. The calculated results show that the spectral line intensity of elements Fe, Mn, K and Ti with carbon sheets confinement at 11 mm from the target surface are enhanced by about 179.88%, 117.02%, 123.21% and 91.24%, respectively, than those without carbon sheets confinement; spectral signal-to-noise ratios are increased by about 107.30%, 92.26%, 68.48% and 67.66%, respectively; the electronic temperature and electronic density of plasmas are increased by 2800 K and 2.16×1016 cm-3, respectively. It provides a simple and easy method for the detection of trace elements in soil.
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  • [1] Inakollu P., Philip T., Rai A.K., Et al., A comparative study of laser induced breakdown spectroscopy analysis for element concentrations in aluminum alloy using artificial neural networks and calibration methods, Spectrochim. Acta Part B., 64, 1, pp. 99-104, (2009)
  • [2] Li J., Lu J., Li J., Et al., Laser-induced plasma spectra of heating surface materials with different hardnesses, Chinese J. Lasers, 38, 8, (2011)
  • [3] Dzyubenko M.I., Kolpakov S.N., Kulishenko D.F., Et al., Rapid analysis of emission spectra for gold alloys, Appl. Spectrosc., 77, 2, pp. 279-284, (2010)
  • [4] Gupta G.P., Suri B.M., Verma A., Et al., Quantitative elemental analysis of nickel alloys using calibration-based laser-induced breakdown spectroscopy, J. Alloys Compd., 509, 9, pp. 3740-3745, (2011)
  • [5] Hamzaoui S., Khleifia R., Jaidane N., Et al., Quantitative analysis of pathological nails using laser-induced breakdown spectroscopy (LIBS) technique, Lasers in Medical Science, 26, 1, pp. 79-83, (2011)
  • [6] Multari R.A., Cremers D.A., Dupre J.M., Et al., The use of laser-induced breakdown spectroscopy for distinguishing between bacterial pathogen species and strains, Appl. Spectrosc., 64, 7, pp. 750-759, (2010)
  • [7] Erdem A., Cilingiroglu A., Giakoumaki A., Et al., Characterization of iron age pottery from eastern Turkey by laser-induced breakdown spectroscopy (LIBS), J. Archaeological Science, 35, 9, pp. 2486-2494, (2008)
  • [8] Caneve L., Diamanti A., Grimaldi F., Et al., Analysis of fresco by laser induced breakdown spectroscopy, Spectrochim. Acta Part B, 65, 8, pp. 702-706, (2010)
  • [9] Yan J., Ding L., Ge L., Et al., Research about analysis of heavy metals in liquid jet by laser-induced breakdown spectroscopy, Chinese J. Lasers, 39, 2, (2012)
  • [10] Xiu J., Hou H., Zhong S., Et al., Quantitative determination of heavy metal element Pb in aqueous solutions by laser-induced breakdown spectroscopy using paper slice substrates, Chinese J. Lasers, 38, 8, (2011)
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