应用化学 ›› 2022, Vol. 39 ›› Issue (9): 1447-1452.DOI: 10.19894/j.issn.1000-0518.210547

• 研究论文 • 上一篇    下一篇

便携式远程激光诱导击穿光谱系统及其定量分析性能

程军杰1, 曹智1, 杨灿然2, 李连顺1, 王健1, 林庆宇2()   

  1. 1.中国核工业集团有限公司,中核四〇四有限公司,嘉峪关 735100
    2.四川大学机械工程学院,成都 610065
  • 收稿日期:2021-11-24 接受日期:2022-03-22 出版日期:2022-09-01 发布日期:2022-09-08
  • 通讯作者: 林庆宇
  • 基金资助:
    国家重大科学仪器设备开发专项(2011YQ030113);成都市科技创新研发项目(2021-YF05-00620-SN)

Quantitative Analysis with a Portable Remote Laser‑induced Breakdown Spectroscopy System

Jun-Jie CHENG1, Zhi CAO1, Can-Ran YANG2, Lian-Shun LI1, Jian WANG1, Qing-Yu LIN2()   

  1. 1.The 404 Co. ,Ltd. ,China National Nuclear Corporation,Jiayuguan 735100,China
    2.Research Center of Analytical Instrumentation,School of Mechanical Engineering,Sichuan University,Chengdu 610065,China
  • Received:2021-11-24 Accepted:2022-03-22 Published:2022-09-01 Online:2022-09-08
  • Contact: Qing-Yu LIN
  • About author:qylin@scu.edu.cn
  • Supported by:
    the National Major Scientific Instruments and Equipment Development Special Funds(2011YQ030113);Chengdu Technological Innovation R & D Project(2021?YF05?00620?SN)

摘要:

因高温、辐射等极端环境限制,核领域亟需具备在线快速检测特性的分析仪器。基于小型风冷脉冲激光器与小型光纤光谱仪实现了远程激光诱导击穿光谱技术(LIBS)装置的小型化,对该便携式远程LIBS系统的定量分析性能进行了研究,实现了5 m外样品的元素遥测。在单脉冲激光能量100 mJ,脉冲延时1.0 μs的分析条件下,实现了白水晶、陶瓷及铝合金样品中Mn、Si、Al、Na、Ba、Ca及Cr元素的激发,验证了LIBS技术对材料组分和物料成分的远程探测能力,对铝合金样品的定量分析结果显示,该远程遥测系统对铝合金样品定量测量结果的最大相对平均偏差为12%,具备执行核领域快速分析场景下的半定量检测能力。

关键词: 激光诱导击穿光谱, 远程, 便携式, 元素测量

Abstract:

A portable remote Laser-induced breakdown spectroscopy (LIBS) system with an air-cooled pulsed laser and a plane grating optical spectrometer is developed to analyze radioactive waste processing materials for the assessment of radionuclide contamination, and the miniaturization of the remote LIBS system is successfully realized. The chemical composition of different types of materials can be obtained from 5 meters away by the system, and the accuracy of the quantitative analysis of the remote LIBS system is verified. The excited spectra of Mn, Si, Al, Na, Ba, Ca and Cr elements in white crystal, ceramic and aluminum alloy samples are recorded by the LIBS system with thhe pulse laser energy of 100 mJ and pulse delay time of 1.0 μs, respectively. The detection ability of LIBS on material components and composition is verified. The quantitative analysis results of aluminum alloy samples shows that the maximumrelative average deviation by the remote system is 12%. The LIBS system can perform semi-quantitative detection in the nuclear field.

Key words: Laser-induced breakdown spectroscopy, Remote, Portable, Quantitative analysis

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