Abstract：Laser induced breakdown spectroscopy(LIBS) was applied to measure barium and strontium elements in soil. The emission spectrum was emitted as the plasma was cooling off, which was collected and analyzed by fiber spectrometer. Spectral lines of barium(BaII line at 455.41 nm) and strontium(SrI line at 460.73 nm) were separately used for the determining. In order to reduce the error, fitting of the spectra by using Lorenizian function was used, the datum was preprocessed and the net intensity value of the spectra was collected. A signal intensity in the proper range of the characteristic spectrum was chosen as the interior label. A calibration curve was drawn according to the ratio between the value of the analytical line and the interior scaling line . The correlation coefficient between the content and the intensity ratio of Ba and Sr were up to 0.990 0 and 0.990 6. The content of Ba and Sr was inversed by means of the intensity scaling method .As a result , the relative deviations between the content values and the standard values of Ba and Sr were 5.7% and 5.1% respectively.
陈添兵，姚明印*，刘木华，雷泽剑，彭秋梅，徐 媛，张 旭 . 用激光诱导击穿光谱技术定量分析土壤中Ba和Sr[J]. 光谱学与光谱分析, 2012, 32(06): 1658-1661.
CHEN Tian-bing, YAO Ming-yin, LIU Mu-hua*, LEI Ze-jian, PENG Qiu-mei, XU Yuan, ZHANG Xu. Quantitative Analysis of Ba and Sr in Soil Using Laser-Induced Breakdown Spectroscopy. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(06): 1658-1661.
[1] LIN Zhao-xiang, LI Jie, LIU Lin-mei, et al(林兆祥, 李 捷, 刘林美, 等). High Power Laser and Particle Beams(强激光与粒子束), 2009，21(6)：818. [2] WANG Chun-long, LIU Jian-guo, ZHAO Nan-jing, et al(王春龙, 刘建国, 赵南京, 等). Chinese Journal of Lasers(中国激光), 2011, 38(11): 246. [3] JIANG Jie, LI Guan, LI Run-hua, et al(姜 杰, 李 关, 李润华, 等). High Power Laser and Particle Beams(强激光与粒子束), 2011, 23(9): 2528. [4] Arroyo L, Trejos T, Gardinali P R. Spectrochim. Acta Part B, 2009，64: 16. [5] WU Wen-tao, MA Xiao-hong, ZHAO Hua-feng, et al(吴文韬, 马晓红, 赵华凤, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2011, 31(2): 452. [6] Jez Willian Batista Braga, Lilian Cristina Trevizan, Lidiane Cristina Nunes, et al. Spectrochimica Acta Part B, 2010, 65: 66. [7] ZHANG Da-cheng, MA Xin-wen, ZHU Xiao-long, et al(张大成, 马新文, 朱小龙, 等). Acta Physica Sinica(物理学报), 2008, 57(10): 6348. [8] YU Liang-ying, LU Ji-dong, CHEN Wen, et al(余亮英, 陆继东, 陈 文, 等). Journal of Applied Optics(应用光学), 2006, 27(2): 147. [9] ZHENG Xian-feng, LI Chun-yan, ZHANG Jin, et al(郑贤锋, 李春燕, 张 瑾, 等). Journal of Atomic and Molecular Physics(原子与分子物理学报), 2004, 21(4): 285. [10] LIU Yan, LU Ji-dong, LI Pin, et al(刘 彦，陆继东，李 娉, 等). Proceedings of the CSEE(中国电机工程学报)，2009, 29(5)：1. [11] Harmon R S，DeLucia F C，Me Manus C E，et al. Appl. Geochem., 2006, 21: 730. [12] Yamamoto K Y，Cremers D A，Foster I E, et al. App1. Spectroscopy, 2005, 59(9): 1082. [13] CHEN Jin-zhong, SHI Jin-chao, ZHANG Xiao-ping(陈金忠, 史金超, 张晓萍). Applied Laser(应用激光)，2007, 27(1)：33. [14] Cremers D A, Radziemski L J. Handbook of Laser-Induced Breakdown Spectroscopy, JohnWiley & SonsLtd, Chiehester, England, 2006. [15] Bass Iotis I, Diamantopoulou A, Giannoudakos A, et al. Spectrochimica Acta Part B, 2001, 56(6)：671. [16] XIN Ren-xuan(辛仁轩). Plasma Emission Spectrum Analyze(等离子体发射光谱分析). Beijing: Chemical Industry Press(北京: 化学工业出版社), 2005. [17] Vrenegor J, Noll R, Sturm V. Spectrochimica Acta Part B, 2005, 60(728): 1083.
