Abstract

In this paper, by means of Cu²⁺ converting to Cu, the sub-ppb detection of copper in aqueous solution was successfully achieved using laser-induced breakdown spectroscopy (LIBS), and the sensitivity was found depending on the voltage applied for the deposition. With increasing voltage, the minimum detectable concentration was significantly lowered, while the signal intensity instability was increased. In order to reduce the impact from the intensity fluctuation, an estimation method was developed to determine the copper concentration via comparing minimum detectable concentrations. The obtained results suggest this method is a potential way toward quantitative analysis.

Determination of trace heavy metal elements in aqueous solution using surface-enhanced laser-induced breakdown spectroscopy

Shixiang Ma, Yun Tang, Yuyang Ma, Yanwu Chu, Feng Chen, Zhenlin Hu, Zhihao Zhu, Lianbo Guo, Xiaoyan Zeng, and Yongfeng Lu
Opt. Express 27(10) 15091-15099 (2019)

High accuracy determination of copper in copper concentrate with double genetic algorithm and partial least square in laser-induced breakdown spectroscopy

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Guided conversion to enhance cation detection in water using laser-induced breakdown spectroscopy

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Sensitive determinations of Cu, Pb, Cd, and Cr elements in aqueous solutions using chemical replacement combined with surface-enhanced laser-induced breakdown spectroscopy

X. Y. Yang, Z. Q. Hao, C. M. Li, J. M. Li, R. X. Yi, M. Shen, K. H. Li, L. B. Guo, X. Y. Li, Y. F. Lu, and X. Y. Zeng
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