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为了改善其检测极限和定量分析的线性拟合系数, 同时满足实时在线监测的需求, 采用气雾化辅助激光诱导击穿光谱技术, 对水溶液中钙(Ca), 铬(Cr), 钾(K), 镁(Mg), 钠(Na), 铅(Pb)六种元素进行了定性和定量检测. 通过对离焦量、横向距离、激光能量以及延时4个主要参数的优化, 获得上述六种元素的检测极限分别为1.2, 3.2, 19.1, 3.4, 2.8和15.9 ppm, 其线性拟合系数均达到0.99以上. 实验结果表明, 气雾化辅助激光诱导击穿光谱技术是一种快速在线检测液体中痕量金属元素的有效方法.
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关键词:
- 气雾化 /
- 激光诱导击穿光谱技术 /
- 金属元素 /
- 水溶液
In order to improve the limit of detection and linearity without losing the advantage of on-line and in-situ measurement, laser-induced breakdown spectroscopy assisted by nebulizer is investigated. The influences of the main experimental parameters, namely the defocusing amount, the distance between the nebulizer and the central of laser beam, the ablation energy and the delay are studied to maximize the signal-to-noise ratio. Using laser-induced breakdown spectroscopy assisted by nebulizer, we demonstrate that the detection limits are 1.2, 3.2, 19.1, 3.4, 2.8, and 15.9 ppm for Ca, Cr, K, Mg, Na, Pb respectively, and the linearities are all above 0.99. The results show that laser-induced breakdown spectroscopy assisted by nebulizer is an effective method to detect the tracing metal element in liquid on-line and in-situ.-
Keywords:
- laser-induced breakdown spectroscopy /
- nebulizer /
- metal element /
- water
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[2] Noll R 2012 Laser-Induced Breakdown Spectroscopy (Berlin: Springer Berlin Heidelberg) pp7-15
[3] Guo L B, Hao R F, Hao Z Q, Li K H, Shen M, Ren Z, Zeng X Y 2013 Acta Phys. Sin. 62 224211 (in Chinese) [郭连波, 郝荣飞, 郝中骐, 李阔湖, 沈萌, 任昭, 曾晓雁 2013 62 224211]
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[5] Carranza J E, Fisher B T, Yoder G D, Hahn D W 2001 Spectrochim. Acta Part B 56 851
[6] Sturm V, Noll R 2003 Appl. Opt. 42 6221
[7] Yu Y, Hao Z Q, Li C M, Guo L B, Li K H, Zeng Q D, Li X Y, Ren Z, Zeng X Y 2013 Acta Phys. Sin. 62 215201 (in Chinese) [于洋, 郝中骐, 李常茂, 郭连波, 李阔湖, 曾庆栋, 李祥友, 任昭, 曾晓雁 2013 62 215201]
[8] Gottfried J L 2007 Spectrochim. Acta Part B 62 1405
[9] Laville S, Sabsabi M, Doucet F R 2007 Spectrochim. Acta Part B 62 1557
[10] Knight A K, Scherbarth N L, Cremers D A, Ferris M J 2000 Appl. Spectrosc. 54 331
[11] Yaroshchyk P, Morrison R J, Body D, Chadwick B L 2005 Spectrochim. Acta Part B 60 986
[12] Yueh F Y, Sharma R C, Singh J P 2002 J. Air Waste Manage. Assoc. 52 1307
[13] St-Onge L, Kwong E, Sabsabi M 2004 J. Pharm. Biomed. Anal. 36 277
[14] Wal R L V, Ticich T M, West J R, Householder P A 1999 Appl. Spectrosc. 53 1226
[15] Díaz Pace D M, D'Angelo C A, Bertuccelli D, Bertuccelli G 2006 Spectrochim. Acta Part B 61 929
[16] Aras N, Yeşiller S , Ateş D A, Yalçin Ş 2012 Spectrochim. Acta Part B 74 87
[17] Zhong S L, Lu Y, Cheng K, Xiu J S, Zheng R E 2011 Spectrosc. Spec. Anal. 31 1458 (in Chinese) [钟石磊, 卢渊, 程凯, 修俊山, 郑荣儿 2011 超声波雾化辅助液体样品激光诱导击穿光谱技术研究 31 1458]
[18] Kumar A, Yueh F Y, Miller T, Singh J P 2003 Appl. Opt. 42 6040
[19] Poulain D E, Alexander D R 1995 Appl. Spectrosc. 49 569
[20] Álvarez-Trujillo L A, Ferreroa A, Laserna J J 2008 J. Anal. At. Spectrom. 23 885
[21] Blocken B, Moonen P, Stathopoulos T, Carmeliet J 2008 J. Eng. Mech. 134 1021
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[1] Lu C P, Liu W Q, Zhao N J, Liu L T, Chen D, Zhang Y J, Liu J G 2011 Acta Phys. Sin. 60 045206 (in Chinese) [卢翠萍, 刘文清, 赵南京, 刘立拓, 陈东, 张玉钧, 刘建国 2011 60 045206]
[2] Noll R 2012 Laser-Induced Breakdown Spectroscopy (Berlin: Springer Berlin Heidelberg) pp7-15
[3] Guo L B, Hao R F, Hao Z Q, Li K H, Shen M, Ren Z, Zeng X Y 2013 Acta Phys. Sin. 62 224211 (in Chinese) [郭连波, 郝荣飞, 郝中骐, 李阔湖, 沈萌, 任昭, 曾晓雁 2013 62 224211]
[4] Wang C L, Liu J G, Zhao N J, Ma M J, Wang Y, Hu L, Zhang D H, Yu Y, Meng D S, Zhang W, Liu J, Zhang Y J, Liu W Q 2013 Acta Phys. Sin. 62 125201 (in Chinese) [王春龙, 刘建国, 赵南京, 马明俊, 王寅, 胡丽, 张大海, 余洋, 孟德硕, 章炜, 刘晶, 张玉钧, 刘文清 2013 62 125201]
[5] Carranza J E, Fisher B T, Yoder G D, Hahn D W 2001 Spectrochim. Acta Part B 56 851
[6] Sturm V, Noll R 2003 Appl. Opt. 42 6221
[7] Yu Y, Hao Z Q, Li C M, Guo L B, Li K H, Zeng Q D, Li X Y, Ren Z, Zeng X Y 2013 Acta Phys. Sin. 62 215201 (in Chinese) [于洋, 郝中骐, 李常茂, 郭连波, 李阔湖, 曾庆栋, 李祥友, 任昭, 曾晓雁 2013 62 215201]
[8] Gottfried J L 2007 Spectrochim. Acta Part B 62 1405
[9] Laville S, Sabsabi M, Doucet F R 2007 Spectrochim. Acta Part B 62 1557
[10] Knight A K, Scherbarth N L, Cremers D A, Ferris M J 2000 Appl. Spectrosc. 54 331
[11] Yaroshchyk P, Morrison R J, Body D, Chadwick B L 2005 Spectrochim. Acta Part B 60 986
[12] Yueh F Y, Sharma R C, Singh J P 2002 J. Air Waste Manage. Assoc. 52 1307
[13] St-Onge L, Kwong E, Sabsabi M 2004 J. Pharm. Biomed. Anal. 36 277
[14] Wal R L V, Ticich T M, West J R, Householder P A 1999 Appl. Spectrosc. 53 1226
[15] Díaz Pace D M, D'Angelo C A, Bertuccelli D, Bertuccelli G 2006 Spectrochim. Acta Part B 61 929
[16] Aras N, Yeşiller S , Ateş D A, Yalçin Ş 2012 Spectrochim. Acta Part B 74 87
[17] Zhong S L, Lu Y, Cheng K, Xiu J S, Zheng R E 2011 Spectrosc. Spec. Anal. 31 1458 (in Chinese) [钟石磊, 卢渊, 程凯, 修俊山, 郑荣儿 2011 超声波雾化辅助液体样品激光诱导击穿光谱技术研究 31 1458]
[18] Kumar A, Yueh F Y, Miller T, Singh J P 2003 Appl. Opt. 42 6040
[19] Poulain D E, Alexander D R 1995 Appl. Spectrosc. 49 569
[20] Álvarez-Trujillo L A, Ferreroa A, Laserna J J 2008 J. Anal. At. Spectrom. 23 885
[21] Blocken B, Moonen P, Stathopoulos T, Carmeliet J 2008 J. Eng. Mech. 134 1021
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