Yao-yao CAO, Xia LI, Jun-peng BAI, Wei XU, Ying NI, Chuang DONG, Hong-li ZHONG, Bin LI. Study on Qualitative and Quantitative Detection of Pefloxacin and Fleroxacin Veterinary Drugs Based on THz-TDS Technology[J]. Spectroscopy and Spectral Analysis, 2022, 42(6): 1798
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 6, 1798 (2022)
Fig. 1. Flowchart of the experimental process
Fig. 2. Terahertz spectra of pure substances
(a): Time domain spectrum; (b): Frequency domain spectrum;(c): Absorption spectrum
(a): Time domain spectrum; (b): Frequency domain spectrum;(c): Absorption spectrum
Fig. 3. Absorption coefficient of binary mixture
(a): Pefloxacin-fish meal feeds; (b): Fleroxacin-fish meal feeds
(a): Pefloxacin-fish meal feeds; (b): Fleroxacin-fish meal feeds
Fig. 4. Qualitative discrimination results
(a): Discrimination results of SVM model;(b): Discrimination results of BPNN model
(a): Discrimination results of SVM model;(b): Discrimination results of BPNN model
Fig. 5. The best prediction model measures and predicts the concentration scatter diagram
(a): Pefloxacin-fish meal feeds;(b): Fleroxacin-fish meal feeds
(a): Pefloxacin-fish meal feeds;(b): Fleroxacin-fish meal feeds
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Table 1. Experimental sample preparation information
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Table 2. Evaluation index of qualitative discrimination results
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Table 3. Quantitative detection results of binary mixture
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