• Laser & Optoelectronics Progress
  • Vol. 59, Issue 2, 0230001 (2022)
Mi Zhu1、*, Hongjian Zhu2, and Yaoqing Chen1
Author Affiliations
  • 1Department of Criminal Science and Technology, Hunan Police College, Changsha , Hunan 410138, China
  • 2Yuelu Branch of Changsha Public Security Bureau of Hunan Province, Changsha , Hunan 410006, China
  • show less
    DOI: 10.3788/LOP202259.0230001 Cite this Article Set citation alerts
    Mi Zhu, Hongjian Zhu, Yaoqing Chen. Nondestructive Classification of Benzodiazepines Sedatives Based on ATR-SEIRAS Analysis Technology[J]. Laser & Optoelectronics Progress, 2022, 59(2): 0230001 Copy Citation Text show less
    ATR-SEIRAS spectra of 8 types of benzodiazepine sedatives
    Fig. 1. ATR-SEIRAS spectra of 8 types of benzodiazepine sedatives
    First derivative ATR-SEIRAS spectra of 8 types of benzodiazepine sedatives
    Fig. 2. First derivative ATR-SEIRAS spectra of 8 types of benzodiazepine sedatives
    Classification accuracy of samples under different characteristic variable quantities. (a) Original spectral dataset; (b) first derivative spectral dataset; (c) fused spectral dataset
    Fig. 3. Classification accuracy of samples under different characteristic variable quantities. (a) Original spectral dataset; (b) first derivative spectral dataset; (c) fused spectral dataset
    Spatial distribution of all samples obtained by FDA model based on spectral combination dataset
    Fig. 4. Spatial distribution of all samples obtained by FDA model based on spectral combination dataset
    TypeQuantityTypeQuantity
    Estazolam15Clozapine6
    Diazepam18Clonazepam12
    Alprazolam6Midazolam maleate6
    Lorazepam6Nitrazepam12
    Table 1. Essential details of 81 benzodiazepine sedatives samples
    DatasetTypeAccuracy /%
    Original spectrumEstazolam100
    Diazepam100
    Alprazolam83.3
    Lorazepam100
    Clozapine100
    Clonazepam100
    Midazolam maleate50
    Nitrazepam100
    First derivative spectrumEstazolam100
    Diazepam100
    Alprazolam83.3
    Lorazepam100
    Clozapine100
    Clonazepam100
    Midazolam maleate100
    Nitrazepam100
    Spectral combinationEstazolam100
    Diazepam100
    Alprazolam100
    Lorazepam100
    Clozapine100
    Clonazepam100
    Midazolam maleate100
    Nitrazepam100
    Table 2. Classification of 8 types of samples by FDA model
    DatasetTypeAccuracy /%
    Original spectrumEstazolam80
    Diazepam100
    Alprazolam100
    Lorazepam100
    Clozapine50
    Clonazepam75
    Midazolam maleate100
    Nitrazepam100
    First derivative spectrumEstazolam100
    Diazepam100
    Alprazolam100
    Lorazepam100
    Clozapine100
    Clonazepam100
    Midazolam maleate100
    Nitrazepam75
    Spectral combinationEstazolam100
    Diazepam100
    Alprazolam100
    Lorazepam100
    Clozapine100
    Clonazepam100
    Midazolam maleate100
    Nitrazepam83.3
    Table 3. Classification of 8 types of samples by MLPNN model
    Mi Zhu, Hongjian Zhu, Yaoqing Chen. Nondestructive Classification of Benzodiazepines Sedatives Based on ATR-SEIRAS Analysis Technology[J]. Laser & Optoelectronics Progress, 2022, 59(2): 0230001
    Download Citation