Abstract

Laser-induced breakdown spectroscopy (LIBS) was explored as a method of monitoring oxygen (O) concentration in electrolytic reduction salt of pyroprocessing. Simulated salt samples were fabricated, and each sample was put in a transparent and sealed vial filled with argon gas. An neodymium-doped yttrium aluminum garnet (Nd:YAG) laser pulse was applied to the sample through the vial surface, and the optical emission spectrum was measured. O(I) 777.2 nm lines were clearly identified in the spectrum of a sample containing Li₂O, and the intensity of the O peak and the intensity ratio of O and lithium (Li) peaks, in which Li was used as the normalization, increased linearly as the O concentration in the salt sample was increased. The limit of detection and root mean square error were calculated for the cases of O peak area, O peak height, peak area ratio of O–Li, and the peak height ratio of O–Li, and all the cases could indicate that the O concentration in the electrolytic reduction salt was out of normal range. Our result shows that LIBS has the possibility to be used as a method for monitoring of O in electrolytic reduction salt.

© 2021 The Author(s)

Determination of toxic and essential metals in rock and sea salts using pulsed nanosecond laser-induced breakdown spectroscopy

I. Rehan, M. Zubair Khan, K. Rehan, A. Mateen, M. Aamar Farooque, S. Sultana, and Z. Farooq
Appl. Opt. 57(2) 295-301 (2018)

Stable sensing platform for diagnosing electrolyte disturbance using laser-induced breakdown spectroscopy

Weiliang Wang, Yuanchao Liu, Yanwu Chu, Siyi Xiao, Junfei Nie, Junlong Zhang, Jianwei Qi, and Lianbo Guo
Biomed. Opt. Express 13(12) 6778-6790 (2022)

Laser-induced breakdown spectroscopy for rapid accurate analysis of Mg, Ca, and K in edible sea salts

Hyang Kim, Van Tho Ngo, Sandeep Kumar, Won Bae Lee, Jeong Park, Song-Hee Han, Sang-Ho Nam, Kyung-Sik Ham, and Yonghoon Lee
Appl. Opt. 58(36) 9940-9948 (2019)

Real-time monitoring of carbon concentration using laser-induced breakdown spectroscopy and machine learning

Zhuoyan Zhou, Yifan Ge, and Yuzhu Liu
Opt. Express 29(24) 39811-39823 (2021)

Standoff monitoring of aqueous aerosols using nanosecond laser-induced breakdown spectroscopy: droplet size and matrix effects

Luis Alonso Álvarez-Trujillo, Violeta Lazic, Javier Moros, and J. Javier Laserna
Appl. Opt. 56(13) 3773-3782 (2017)