Chinese Journal of Applied Chemistry ›› 2022, Vol. 39 ›› Issue (9): 1447-1452.DOI: 10.19894/j.issn.1000-0518.210547

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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)

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

CLC Number: