Qing-bo LI, Yuan WEI, Hou-xin CUI, Hao FENG, Jia-ye LANG. Quantitative Analysis of TOC in Water Quality Based on UV-Vis Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2022, 42(2): 376
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 2, 376 (2022)
Fig. 1. Absorbance spectra of TOC samples with different concentrations
Fig. 2. PRESS curve of the predicted concentration of the test set samples using different principal component numbers
Fig. 3. Relative error of sample predicted concentration in test set using the optimal principal component number
Fig. 4. Spectral comparison of TOC actual concentration of 28 and 31 mg·L-1 on different experimental days
Fig. 5. Relative error of predicted TOC concentration in experiment 2
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Table 1. TOC concentration prediction results of validation experiment with different instrument states in the first experimental day
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Table 2. TOC concentration prediction results of cross experiment with different instrument status on different experimental days
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