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

doi:10.19894/j.issn.1000-0518.210547

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.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

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:

O657.3

Jun-Jie CHENG, Zhi CAO, Can-Ran YANG, Lian-Shun LI, Jian WANG, Qing-Yu LIN. Quantitative Analysis with a Portable Remote Laser‑induced Breakdown Spectroscopy System[J]. Chinese Journal of Applied Chemistry, 2022, 39(9): 1447-1452.

Figures/Tables 8

Fig.1 Experimental setup of the remote LIBS：（A） Schematic of remote LIBS；（B） Remote LIBS design drawing

Table 1 The chemical composition of the aluminum alloy（%）

编号 No.	Si	Fe	Cu	Mn	Mg	Cr	Ni	Zn	Ti
E421c	0.541	0.206	0.004	0.864	1.17	0.085	0.059	0.297	0.114
E422d	1.01	0.363	0.228	0.522	0.693	0.161	0.043	0.226	0.055
E423c	1.24	0.428	0.487	0.233	0.933	0.354	0.027	0.094	0.026
E424c	0.235	0.697	0.705	1.18	0.411	0.218	0.089	0.166	0.066
E425c	1.58	0.848	0.078	1.48	0.068	0.288	0.115	0.041	0.0083
E426c	0.052	0.074	0.927	0.042	1.46	0.039	0.013	0.361	0.160

Fig.2 Spectra of quartz from remote LIBS system

Fig.3 Spectra of ceramics from remote LIBS system

Fig.4 Spectra of aluminum alloy from E421c remote LIBS system

Fig.5 Intensity variation of Cr（Ⅱ） 283.56 nm and Mg（Ⅱ） 279.55 nm within 100 shots

Fig.6 Calibration curves of the Cr element （A） and Mg element （B） in aluminum alloy standard samples by remote LIBS system

Table 2 Accuracy of the quantitative analysis of the remote LIBS system

元素

Elements

样品

Samples

实际值

Real value/%

测量值

Found value/%

相对平均偏差

Relative average deviation/%

References 12

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

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