Yan-jun ZHANG, Cheng-long KANG, Ya-qian LIU, Xing-hu FU, Jin-xiao ZHANG, Ming-xue WANG, Liu-zhen YANG. Rapidly Detection of Total Nitrogen and Phosphorus Content in Water by Surface Enhanced Raman Spectroscopy and GWO-SVR Algorithm[J]. Spectroscopy and Spectral Analysis, 2021, 41(10): 3147
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 10, 3147 (2021)
Fig. 1. GWO-SVR algorithm flow chart
Fig. 2. Surface enhanced Raman spectrum
(a): TN; (b): TP
(a): TN; (b): TP
Fig. 3. Spectra pretreatment
(a): Background removal; (b): Smoothed
(a): Background removal; (b): Smoothed
Fig. 4. Correlation between predicted value and true value
(a): TN; (b): TP
(a): TN; (b): TP
Fig. 5. Different model correclation curves
(a): TN; (b): TP
(a): TN; (b): TP
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Table 1. The characteristic Raman spectral peak of TN
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Table 2. The characteristic Raman spectral peak of TP
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Table 3. GWO-SVR model evaluation results
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Table 4. Comparison of prediction results of different models (TN)
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Table 5. Comparison of prediction results of different models(TP)
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