激光与光电子学进展, 2014, 51 (3): 033001, 网络出版: 2014-03-03
蚊香元素成分的LIBS检测分析 下载: 580次
Measurement and Analysis on Elemental Composition of Mosquito Coil by Laser-Induced Breakdown Spectroscopy
光谱学 激光诱导击穿光谱 局域热动力学平衡 蚊香元素成分 spectroscopy laser-induced breakdown spectroscopy local thermodynamic equilibrium elemental composition of mosquito coil
摘要
激光诱导击穿光谱(LIBS)作为一项很有前景的元素分析技术,具有原位测量、远程监控等优势,而对蚊香样品的LIBS 检测应用是一项较新的课题。为将LIBS 技术实际应用于环境监测领域,实验中利用时间分辨的激光诱导击穿光谱技术对蚊香样品的激光等离子体光谱进行了测量和分析,确定出蚊香中Al、Mn、Mg、Sr、Zn、Ba、Na、Ca、Fe、Si和H 的11 种元素成分;基于等离子体局域热动力学平衡模型,计算了等离子体温度。利用自由定标分析方法计算了上述元素的相对含量。实验结果表明激光诱导击穿光谱技术可以用于有害元素的快捷有效检测。
Abstract
Laser-induced breakdown spectroscopy(LIBS) has been used as a promising element analysis technique with the advantages of in-situ detection and remote monitoring etc. It is a relatively new task to apply LIBS to mosquito coil sample. In order to apply LIBS technique in the field related to environmental monitoring, we use time-resolved LIBS to measure and analyze mosquito coil sample. Eleven kinds of elemental composition of mosquito coil, which are Al, Mn, Mg, Sr, Zn, Ba, Na, Ca, Fe, Si and H, are identified. Based on local thermodynamic equilibrium (LTE) assumption, the plasma temperature is obtained. The relative concentrations of these elements are estimated by calibration-free method. The experimental result prove that LIBS can be applied to the rapid and effective detection on the harmful elements.
王鹏展, 孙对兄, 苏茂根, 张倩倩, 董晨钟. 蚊香元素成分的LIBS检测分析[J]. 激光与光电子学进展, 2014, 51(3): 033001. Wang Pengzhan, Sun Duixiong, Su Maogen, Zhang Qianqian, Dong Chenzhong. Measurement and Analysis on Elemental Composition of Mosquito Coil by Laser-Induced Breakdown Spectroscopy[J]. Laser & Optoelectronics Progress, 2014, 51(3): 033001.