• Spectroscopy and Spectral Analysis
  • Vol. 42, Issue 1, 26 (2022)
Fang YAN, Jun-lin ZHANG*;, Li-cheng MAO, Tong-hua LIU, and Bo-yang JIN
Author Affiliations
  • School of Information Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China
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    DOI: 10.3964/j.issn.1000-0593(2022)01-0026-05 Cite this Article
    Fang YAN, Jun-lin ZHANG, Li-cheng MAO, Tong-hua LIU, Bo-yang JIN. Research on Information Extraction Method of Carbohydrate Isomers Based on Terahertz Radiation[J]. Spectroscopy and Spectral Analysis, 2022, 42(1): 26 Copy Citation Text show less
    THz absorption spectra of two simple substances
    Fig. 1. THz absorption spectra of two simple substances
    D-(+)-Glucose unimolecule configuration
    Fig. 2. D-(+)-Glucose unimolecule configuration
    Comparison of theoretical calculation spectrum and experimental spectrum of D-(+)-glucose unimolecle configuration
    Fig. 3. Comparison of theoretical calculation spectrum and experimental spectrum of D-(+)-glucose unimolecle configuration
    Crystal structure of glucose
    Fig. 4. Crystal structure of glucose
    Comparison of glucose experimental spectrum and crystal structure theoretical calculation absorption spectrum
    Fig. 5. Comparison of glucose experimental spectrum and crystal structure theoretical calculation absorption spectrum
    The vibration mode of glucose at 1.48 THz
    Fig. 6. The vibration mode of glucose at 1.48 THz
    Colored glucose RDG scatter plot
    Fig. 7. Colored glucose RDG scatter plot
    Colored glucose RDG isosurface map
    Fig. 8. Colored glucose RDG isosurface map
    SampleSample
    number
    Powder
    /mg
    Pill weight
    /mg
    Thickness
    /mm
    Sample proportion
    /%
    glu1169.8168.11.7210
    D-(+)-Glucose (glu)glu2171168.81.7510
    glu3170.5168.41.7310
    fru1170.1165.81.5610
    D-(-)-Fructose (fru)fru2169.2158.21.5010
    fru3170.8143.81.3610
    Table 1. Sample mixing information
    sign(λ2)p(r)Corresponding colorLocation of RDG isosurface
    -0.035~0.025blueH37/O76, H20/O77, H31/O83, H38/O90, H45/O90, H12/O91
    -0.01~0greenH18/O76, H22/O78, H18/O78, H25/O79, H15/O86, H17/O86, H32/O83,
    H45/O90, H24/O92, H9/O91, H32/O84, H31/O84, H23/O77
    0.005~0.015Half red
    half green
    H14/O82, H11/O75, H2/O75, H4/O76, H9/O76, H13/O81, H16/O81, H21/O81, H28/O88, H36/O88, H26/O87, H35/O87, H47/O94, H44/O93, H40/O93,
    H37/O93, H22/O92
    Table 2. The specific location of the weak interaction isosurface
    Fang YAN, Jun-lin ZHANG, Li-cheng MAO, Tong-hua LIU, Bo-yang JIN. Research on Information Extraction Method of Carbohydrate Isomers Based on Terahertz Radiation[J]. Spectroscopy and Spectral Analysis, 2022, 42(1): 26
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