气雾化辅助激光诱导击穿光谱检测水中的痕量金属元素?

物理学报

气雾化辅助激光诱导击穿光谱检测水中的痕量金属元素?

, , , , , , , , ,

朱光正, 郭连波, 郝中骐, 李常茂, 沈萌, 李阔湖, 李祥友, 刘建国, 曾晓雁, 陆永枫. 2015: 气雾化辅助激光诱导击穿光谱检测水中的痕量金属元素?, 物理学报, null(2): 24212. doi: 10.7498/aps.64.024212

引用本文:

朱光正, 郭连波, 郝中骐, 李常茂, 沈萌, 李阔湖, 李祥友, 刘建国, 曾晓雁, 陆永枫. 2015: 气雾化辅助激光诱导击穿光谱检测水中的痕量金属元素?, 物理学报, null(2): 24212. doi: 10.7498/aps.64.024212

Zhu Guang-Zheng, Guo Lian-Bo, Hao Zhong-Qi, Li Chang-Mao, Shen Meng, Li Kuo-Hu, Li Xiang-You, Liu Jian-Guo, Zeng Xiao-Yan, Lu Yong-Feng. 2015: Detection of metal element in water using laser-induced breakdown sp ectroscopy assisted by nebulizer, Acta Physica Sinica, null(2): 24212. doi: 10.7498/aps.64.024212

Citation:

Zhu Guang-Zheng, Guo Lian-Bo, Hao Zhong-Qi, Li Chang-Mao, Shen Meng, Li Kuo-Hu, Li Xiang-You, Liu Jian-Guo, Zeng Xiao-Yan, Lu Yong-Feng. 2015: Detection of metal element in water using laser-induced breakdown sp ectroscopy assisted by nebulizer, Acta Physica Sinica, null(2): 24212. doi: 10.7498/aps.64.024212

气雾化辅助激光诱导击穿光谱检测水中的痕量金属元素?

华中科技大学，武汉光电国家实验室筹，武汉 430074

Detection of metal element in water using laser-induced breakdown sp ectroscopy assisted by nebulizer

摘要: 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.
- 气雾化 /
- 激光诱导击穿光谱技术 /
- 金属元素 /
- 水溶液
Abstract: In order to improve the limit of detection and linearity without losing the advantage of on-line and in-situ mea-surement, laser-induced breakdown spectroscopy assisted by nebulizer is investigated. The influences of the main exper-imental 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.

计量

文章访问数: 360
HTML全文浏览数: 84
PDF下载数: 0
施引文献: 0

气雾化辅助激光诱导击穿光谱检测水中的痕量金属元素?

华中科技大学，武汉光电国家实验室筹，武汉 430074

关键词:

摘要: 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.

English Abstract

Detection of metal element in water using laser-induced breakdown sp ectroscopy assisted by nebulizer

华中科技大学，武汉光电国家实验室筹，武汉 430074

Keywords:

Abstract: In order to improve the limit of detection and linearity without losing the advantage of on-line and in-situ mea-surement, laser-induced breakdown spectroscopy assisted by nebulizer is investigated. The influences of the main exper-imental 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.

全文HTML

参考文献 (0)

/

下载: 全尺寸图片幻灯片

分享

用微信扫码二维码

分享至好友和朋友圈

返回