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Proceedings Paper

Detection of illegal additives for health products based on terahertz spectroscopy
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Paper Abstract

The terahertz time-domain spectra of sildenafil, metformin hydrochloride and phenolphthalein samples were obtained by terahertz time-domain spectroscopy. The refractive index spectra and absorption spectra of these additives were obtained according to the formula. The experimental results show that these three health supplements have obvious characteristic absorption peaks in the terahertz band. The illegal additives were classified based on support vector machine (SVM). The experimental results show that the established SVM model can accurately identify the check set and identify the additive within a certain range. The feasibility of terahertz time-domain spectroscopy for food ingredient detection was verified, which provided a new experimental method for the detection of health product additives.

Paper Details

Date Published: 18 November 2019
PDF: 8 pages
Proc. SPIE 11196, Infrared, Millimeter-Wave, and Terahertz Technologies VI, 111960B (18 November 2019); doi: 10.1117/12.2538462
Show Author Affiliations
Yiwen Fu, China Jiliang Univ. (China)
Xiai Chen, China Jiliang Univ. (China)
Xue Wu, China Jiliang Univ. (China)
Piaoyun Chen, Zhejiang Univ. (China)
Pingjie Huang, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 11196:
Infrared, Millimeter-Wave, and Terahertz Technologies VI
Cunlin Zhang; Xi-Cheng Zhang; Masahiko Tani, Editor(s)

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