Journal of Applied Spectroscopy

, Volume 85, Issue 1, pp 197–202 | Cite as

Detection of Poisonous Herbs by Terahertz Time-Domain Spectroscopy

  • H. Zhang
  • Z. Li
  • T. Chen
  • J.-J. Liu

The aim of this paper is the application of terahertz (THz) spectroscopy combined with chemometrics techniques to distinguish poisonous and non-poisonous herbs which both have a similar appearance. Spectra of one poisonous and two non-poisonous herbs (Gelsemium elegans, Lonicera japonica Thunb, and Ficus Hirta Vahl) were obtained in the range 0.2–1.4 THz by using a THz time-domain spectroscopy system. Principal component analysis (PCA) was used for feature extraction. The prediction accuracy of classification is between 97.78 to 100%. The results demonstrate an efficient and applicative method to distinguish poisonous herbs, and it may be implemented by using THz spectroscopy combined with chemometric algorithms.


terahertz spectroscopy poisonous herbs 


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • H. Zhang
    • 1
  • Z. Li
    • 1
    • 2
  • T. Chen
    • 3
  • J.-J. Liu
    • 4
  1. 1.School of Mechano-Electronic EngineeringXidian UniversityXi’anChina
  2. 2.Guilin University of Aerospace TechnologyGuilinChina
  3. 3.Guilin University of Electronic TechnologyGuilinChina
  4. 4.Jiujiang UniversityJiujiangChina

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