Spectroscopy and Spectral Analysis, Volume. 42, Issue 2, 376(2022)
Quantitative Analysis of TOC in Water Quality Based on UV-Vis Spectroscopy
Figures & Tables(7)
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
Table 1. TOC concentration prediction results of validation experiment with different instrument states in the first experimental day
View tableView in ArticleTable 1. TOC concentration prediction results of validation experiment with different instrument states in the first experimental day
实际浓度/
(mg·L-1)预测浓度/
(mg·L-1)相对误差/
%37.00 37.45 1.21 49.00 49.52 1.07 61.00 61.57 0.93 76.00 75.95 0.06 88.00 88.63 0.72 109.00 106.46 2.33 127.00 127.59 0.46 145.00 146.55 1.07
Table 2. TOC concentration prediction results of cross experiment with different instrument status on different experimental days
View tableView in ArticleTable 2. TOC concentration prediction results of cross experiment with different instrument status on different experimental days
实验类型 预测浓度最大
相对误差/%MAPE/% RMSEP 实验1 7.19 3.82 3.75 实验2 15.91 3.75 2.99 实验3 6.48 3.43 3.91 实验4 2.33 0.98 1.14
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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
Paper Information
Category: Research Articles
Received: Jan. 19, 2021
Accepted: Apr. 10, 2021
Published Online: Apr. 2, 2022
The Author Email: LI Qing-bo (qbleebuaa@buaa.edu.cn)
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