Jing HE, Quancheng LIU, Zhonggang XIONG, Linyu CHEN. Determination of copper content in raw ores via laser-induced breakdown spectroscopy with generalized linear model[J]. Infrared and Laser Engineering, 2025, 54(2): 20240455
- Infrared and Laser Engineering
- Vol. 54, Issue 2, 20240455 (2025)
Fig. 1. Schematic of LIBS experimental setup
Fig. 2. Tablet images of nine kinds of ore/concentrate samples
Fig. 3. Typical spectra of nine kinds of copper ore/concentrate
Fig. 4. Variation of R 2 in the training and test sets with α
Fig. 5. The number of selected Cu lines with α
Fig. 6. Predicted and validated results of Elastic Net
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Table 1. The spectra sets and speciality of copper ore/concentrate
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Table 2. Performance comparison between eight models
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Table 3. Fitting MSE of Leave-one-out method
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Table 4. Validation MSE of Leave-one-out method
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Table 5. Paired T-Test
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