Luna Ying, Weidong Zhou. Comparative Analysis of Multiple Chemometrics Methods in Application of Laser-Induced Breakdown Spectroscopy for Quantitative Analysis of Soil Elements[J]. Acta Optica Sinica, 2018, 38(12): 1214002
- Acta Optica Sinica
- Vol. 38, Issue 12, 1214002 (2018)
Fig. 1. Experimental device
Fig. 2. Prediction results of different models at different analysis lines. (a) Ni I 325.074 nm; (b) Ni II 237.542 nm; (c) Ni I 236.063 nm; (d) Ni I 234.554 nm
Fig. 3. Relative error of different analysis linesat different models. (a) Ni I 325.074 nm; (b) Ni II 237.542 nm; (c) Ni I 236.063 nm; (d) Ni I 234.554 nm
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Table 1. Mass fraction of Ni in soil samples
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Table 2. RSD of predictionresults of different analysis lines at different models
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Table 3. Global root mean square error and correlation coefficient of different analysis lines at different models
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