Jun-peng BAI, Bin LI, Shu-juan ZHANG, Yi-mei CHEN. Study on Norfloxacin Concentration Detection Based on Terahertz Time Domain Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2021, 41(9): 2710
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 9, 2710 (2021)
Fig. 1. Flowchart of the experimental process
Fig. 2. Average spectrum of terahertz absorption coefficient
(a): Larger gradient Norfloxacin; (b): Smaller gradient Norfloxacin
(a): Larger gradient Norfloxacin; (b): Smaller gradient Norfloxacin
Fig. 3. Terahertz absorption coefficient spectrum
(a): Larger gradient Norfloxacin (raw data); (b): Larger gradient Norfloxacin (after S-G filtering);(c): Smaller gradient Norfloxacin (raw data); (d): Smaller gradient Norfloxacin (after S-G filtering)
(a): Larger gradient Norfloxacin (raw data); (b): Larger gradient Norfloxacin (after S-G filtering);(c): Smaller gradient Norfloxacin (raw data); (d): Smaller gradient Norfloxacin (after S-G filtering)
Fig. 4. Variable selection SPA (Larger gradient Norfloxacin)
(a): RMSE graph of the number of variables selected; (b) Location of selected variables
(a): RMSE graph of the number of variables selected; (b) Location of selected variables
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Table 1. MLR modeling results of larger gradient Norfloxacin
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Table 2. MLR modeling results of smaller gradient Norfloxacin
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