Measurement and Analysis of Copper in Soil Using Laser-Induced Breakdown Spectroscopy
LU Cui-ping, LIU Wen-qing*, ZHAO Nan-jing, LIU Li-tuo, CHEN Dong, ZHANG Yu-jun, LIU Jian-guo
Key Laboratory of Environment Optics and Technology, Chinese Academy of Sciences, Anhui Province Laboratory of Environment Optics Monitoring Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
Abstract：The present paper analyzed the characteristics of laser-induced breakdown spectroscopy (LIBS) of metal element Cu in soil using the Nd∶YAG (wavelength: 1 064 nm) laser as the excitation source, where the spectral signals were detected by the highly resolved and wide spectral echelle spectrograph and intensified charge coupled device (ICCD). The time evolution of the characteristic spectral line of Cu was obtained by changing the delay time of ICCD at the same concentration and the gate of ICCD with wavelength of 329.396 nm of Cu as the characteristic spectral line, from which the best delay time 1.1 μs was found. By measuring the intensities of the characteristic spectral line with different Cu concentrations, it was demonstrated that the intensities of the spectral line increased with the concentration of Cu under the condition of low concentration. From the results the LIBS calibration curve of Cu was obtained, and by fitting calculation the detection limit of Cu in soil at 13.36 μg·g-1 was obtained.
鲁翠萍，刘文清*，赵南京，刘立拓，陈 东，张玉钧，刘建国 . 土壤中铜元素的激光诱导击穿光谱测量分析 [J]. 光谱学与光谱分析, 2010, 30(11): 3132-3135.
LU Cui-ping, LIU Wen-qing*, ZHAO Nan-jing, LIU Li-tuo, CHEN Dong, ZHANG Yu-jun, LIU Jian-guo . Measurement and Analysis of Copper in Soil Using Laser-Induced Breakdown Spectroscopy . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2010, 30(11): 3132-3135.
[1] CUI De-jie, Zhang Yu-long(崔德杰, 张玉龙). Chinese Journal of Soil Science(土壤通报), 2004, 35: 367. [2] Andrzej W Miziolek, Vincenzo Palleschi, Israel Schechter. Laser-Induced Breakdown Spectroscopy(LIBS): Fundamentals and Applications. Cambridge University, 2006. [3] David A Cremers, Leon J Radziemski. Handbook of Laser-Induced Breakdown Spectroscopy. Cambridge University, 2006. [4] Baudelet M, Yu J, Jovelet J, et al.Appl. Phys. Lett., 2006, 89: 163903. [5] Mohamed W T Y. Optics & Laser Technology, 2007, 40: 30. [6] Rosenwasser S, Asimellis G, Bromley B, et al. Spectrochim. Acta Part B, 2001, 56: 707. [7] Anglos D. Appl. Spectrosc., 2001, 55: 186A. [8] Arca G, Ciucci A, Palleschi V, et al. Appl. Spectrosc., 1997, 51: 1102. [9] Dudragne L, Adam P, Amouroux J. Appl. Spectrosc., 1998, 52: 1321. [10] Multari R A, Foster L E, Cremers D A, et al. Appl. Spectrosc., 1996, 50: 1483. [11] XU Hong-guang, GUAN Shi-cheng, FU Yuan-xia, et al(许洪光, 管士成, 傅院霞, 等). Chinese Journal of Lasers(中国激光), 2007, 34: 577. [12] Writing group of Emission Spectral Analysis(发射光谱分析编写组). Emission Spectral Analysis(发射光谱分析). Beijing: Metallurgical Industry Press(北京：冶金工业出版社)，1977. [13] NIST Electronic database, at http://physics.nist.gov//phys RefData. [14] LI Pin, LU Ji-dong, XIE Cheng-li, et al(李 娉, 陆继东, 谢承利, 等). Journal of Applied Optics(应用光学), 2007, 28: 756. [15] Fona J Wallis, Bruce L Chadwick, Richard J S. Applied Spectroscopy, 2000, 54(8): 1231.
