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ISSN: 1023-5086


ISSN: 1023-5086

Scientific and technical

Opticheskii Zhurnal

A full-text English translation of the journal is published by Optica Publishing Group under the title “Journal of Optical Technology”

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DOI: 10.17586/1023-5086-2020-87-07-73-79

УДК: 535.8, 617.7

Analysis of the terahertz characteristics of pesticide residue isomers

For Russian citation (Opticheskii Zhurnal):
Jianjun Liu. Анализ терагерцовых характеристик остаточных изомеров пестицидов // Оптический журнал. 2020. Т. 87. № 7. С. 7379.   Jianjun Liu. Analysis of the terahertz characteristics of pesticide residue isomers [in English] // Opticheskii Zhurnal. 2020. V. 87. № 7. P. 73–79.
For citation (Journal of Optical Technology):

Jianjun Liu, "Analysis of the terahertz characteristics of pesticide residue isomers," Journal of Optical Technology . 87(7), 440-444 (2020).


The detection of pesticide isomers is a great advantage in the agricultural pharmaceutical industry. Terahertz spectroscopy can be used in such applications because it is very sensitive to intermolecular interactions. Although it is challenging to understand the basic properties of lattice vibrations that cause terahertz absorption, it can be achieved by calculation. In this paper, the terahertz spectra of dimethylamine and dimethylamine-p isomers of pesticide residues were determined by terahertz spectroscopy, and their terahertz absorption vibration properties were analyzed by quantum chemistry method. The results show that terahertz spectroscopy can realize the identification and quantitative analysis of isomers and verify the reliability and practicability of quantum chemistry in calculating low frequency vibration motion.


terahertz, detection, isomers, spectroscopy

OCIS codes: 300.0300, 040.2235, 010.1030


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