光谱学与光谱分析 |
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Study on Detection Sensitivity of Heavy Metal in Water Based on LIBS Combined with Electrode Enrichment Method |
WANG Yuan-yuan, ZHAO Nan-jing*, MA Ming-jun, FANG Li, YU Yang, MENG De-shuo, GU Yan-hong, JIA Yao, LIU Jian-guo, LIU Wen-qing |
Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Key Laboratory of Optical Monitoring Technology for Environment, Hefei 230031, China |
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Abstract In order to improve the detection sensitivity of laser-induced breakdown spectroscopy (LIBS) and lower the limit of the detection of elements, LIBS combined with Aluminum electrode enrichment method is adopted to analyze heavy metals such as Pb,Cdand Ni in the water. The relationship between the characteristic spectral intensity and the key parameters-voltage of electrode method is discussed, the spectral intensity increases first and then decreases with the increase of voltage. The spectral intensity reaches the maximum value when the enrichment voltage is 1.2 V while the optimal enrichment voltage value is 1.2 V. The stability of characteristic spectral lines of heavy metals is studied, and the relative standard deviation(RSD) of spectral intensity of Pb, Cd and Ni is 5.98%,4.25 % and 5.27% respectively, the result shows that the spectral line obtained by this method has high stability. A series of samples in the range of 0~0.13 mg·L-1 are prepared and quantitatively analyzed, the limit of detection of Pb, Cd and Ni is obtained 1.2,3.1 and 1.7 ppb respectively. The above result shows that LIBS combined with aluminum electrode enrichment method can effectively improve the stability of characteristic spectral lines and lower the limit of detection of Pb,Cd and Ni. This research also provides a method to further improve detection sensitivity of LIBS and analysis ability of heavy metal in the water.
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Received: 2016-03-14
Accepted: 2016-07-08
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Corresponding Authors:
ZHAO Nan-jing
E-mail: njzhao@aiofm.ac.cn
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[1] YANG Xue-fu, GUAN Jian-ling, DUAN Jin-ming, et al(杨学福, 关建玲, 段晋明, 等). Bulletin of Soil and Water Conservation(水土保持通报), 2014, 34(2): 153. [2] GUO Yu-jie, WANG Xue-chao, ZHOU Zhen-min(郭宇杰, 王学超, 周振民). Environmental Chemistry(环境化学), 2012, 31(7): 1114. [3] YANG Xu, WANG Xiao-li(杨 旭, 王晓丽). Environmental Monitoring and Forewarning(环境监控与预警), 2014, 6(5): 41. [4] Yao M, Lin J, Liu M, et al. Applied Optics, 2012, 51(10): 1552. [5] LI Qiang, ZHANG Rui-qing, GUO Fei(李 强, 张瑞卿, 郭 飞). Chinese Journal of Ecology(生态学杂志), 2013, 32(8): 2140. [6] DONG Da-ming, ZHENG Wen-gang, ZHAO Chun-jiang, et, al(董大明, 郑文刚, 赵春江, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2013, 33(3): 785. [7] CHEN Dong, LIU Wen-qing, ZHANG Yu-jun, et al(陈 东, 刘文清, 张玉钧, 等). Chinese journal of Lasers(中国激光), 2010, 37(S1): 244. [8] SHI Huan, ZHAO Nan-jing, WANG Chun-long, et, al(石 焕, 赵南京, 王春龙, 等). Laser & Optoelectronics Progress(激光与光电子学进展), 2012, 49(5): 013003-1. [9] HU Li, ZHAO Nan-jing, LIU Wen-qing, et, al(胡 丽, 赵南京, 刘文清, 等). Chinese Journal of Lasers(中国激光), 2014, 41(7): 003. [10] WU Jin-quan, CHANG Liang, LIU Lin-mei, et, al(吴金泉, 常 亮, 刘林美, 等). Applied Laser(应用激光), 2010, 30(4): 340. [11] ZHAO Fang, ZHANG Qian, XIONG Wei, et, al(赵 芳, 张 谦, 熊 威, 等). Environmental Science & Technology(环境科学与技术), 2010, (03): 137. [12] LU Yuan, LI Ying, QI Fujun, et, al. Applied Spectroscopy, 2015, 69(12): 1412. [13] DING Yao, WU Guang-ming, YIN Tian-lan, et, al(丁 尧, 武光明, 殷天兰, 等). Journal of Beijing Institute of Petro-Hemical Technology(北京石油化工学院学报), 2014, 22(3): 14. [14] ZHANG Chao, AO Jian-ping, WANG Li, et, al(张 超, 敖建平, 王 利, 等). Acta Physico-Chimica Sinica(物理与化学学报), 2012, 28(8): 1913. [15] LU Cui-ping, LIU Wen-qing, ZHAO Nan-jing, et, al(鲁翠萍, 刘文清, 赵南京, 等). Acta Physica Sinica(物理学报), 2011, 4: 045206. |
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