Hong-bo FU, Bian WU, Hua-dong WANG, Meng-yang ZHANG, Zhi-rong ZHANG. Quantitative Analysis of Li in Lithium Ores Based on Laser-Induced Breakdown Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2022, 42(11): 3489
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 11, 3489 (2022)
Fig. 1. Schematic diagram of the experimental setup
Fig. 2. Typical spectra of Lithium ore
Fig. 3. The RMSECV of the PLSR calibration model varying with the number of PCs
Fig. 4. PLSR prediction model
Fig. 5. The explained variance ratio changes with PCA principal component number
Fig. 6. Loadings plots of the first two principal components
Fig. 7. Variation of RMSECV with regularization parameter C of SVR
Fig. 8. PCA+SVR prediction model
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Table 1. Contents of Li in the samples (Wt%)
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