Detection of Benzoic Acid in Arrowroot by Terahertz Technology

Yan-de, 刘燕德 Liu; Xiuyang, 杜秀洋 Du; Bin, 李斌 Li; Jun, 胡军 Hu; Jian, 吴建 Wu; Yilei, 郑艺蕾 Zheng

doi:10.3788/lop56.041101

Cited by 2 publications

(3 citation statements)

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“…That study indicated that THz-TDS technology combined with VIP-PLSR could be employed for the rapid and non-destructive detection of residues of harmful additives. Liu et al used THz-TDS technology to quantitatively analyze the content of benzoic acid in kudzu powder ( Liu et al, 2019 ) (Liu et al, 2019). They compared a group without plastic packaging with a group with plastic packaging.…”

Section: Application For Tcm Analysesmentioning

confidence: 99%

“…This method provided a reference for the quantitative detection of adulteration of pearl powder and shell powder, and was rapid and simple. Li et al used THz-TDS technology to quantitatively detect the content of seed potato starch in kudzu (Li B. et al, 2019) (Li et al, 2019). They established quantitative detection models of kudzu powder mixed with seed potato starch by PLS and least squares support vector machine (LS-SVM), respectively.…”

Section: Monitoring Of Adulteration Of Tcmmentioning

confidence: 99%

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Progress in application of terahertz time-domain spectroscopy for pharmaceutical analyses

Huang

Deng

Xia

et al. 2023

Front. Bioeng. Biotechnol.

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Terahertz time-domain spectroscopy is an analytical method using terahertz time-domain pulses to study the physical and chemical properties of substances. It has strong potential for application in pharmaceutical analyses as an original non-destructive, efficient and convenient technology for spectral detection. This review briefly introduces the working principle of terahertz time-domain spectroscopy technology, focuses on the research achievements of this technology in analyses of chemical drugs, traditional Chinese medicine and biological drugs in the past decade. We also reveal the scientific feasibility of practical application of terahertz time-domain spectroscopy for pharmaceutical detection. Finally, we discuss the problems in practical application of terahertz time-domain spectroscopy technology, and the prospect of further development of this technology in pharmaceutical analyses. We hope that this review can provide a reference for application of terahertz time-domain spectroscopy technology in pharmaceutical analyses in the future.

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Section: Application For Tcm Analysesmentioning

confidence: 99%

Section: Monitoring Of Adulteration Of Tcmmentioning

confidence: 99%

Progress in application of terahertz time-domain spectroscopy for pharmaceutical analyses

Huang

Deng

Xia

et al. 2023

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

show abstract

“…Terahertz waves are electromagnetic radiation in the frequency band of 0.1 THz to 10 THz, which is located between the microwave and infrared bands in the electromagnetic spectrum. As a newly developed frequency window, terahertz waves enjoy broad application prospects in the fields of physics, chemistry, communications, radar, medicine, and security due to their unique electromagnetic properties [1][2][3][4][5]. The spectrum of materials in the terahertz band contains a wealth of physical and chemical information.…”

Section: Introductionmentioning

confidence: 99%

Vibration and Terahertz Wave Absorption Characteristics of Graphene Material

Wang

Qiu

Han

et al. 2023

J. Phys.: Conf. Ser.

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In this study, theoretical calculation of the molecular vibration frequency of graphene materials in the range of 0.1~10 THz was carried out using density functional theory, and the vibration mode of graphene molecules was analyzed. THz time domain spectrometer was employed to test the absorption spectra of graphene materials in the 0.2~3.5 THz frequency band, and the assignments of the absorption characteristic peaks of graphene were identified respectively. The results show that the graphene material produces resonance absorption of terahertz waves due to the interaction of intramolecular C-C at frequencies around 1.92 THz and 2.11 THz, and the calculated results are highly consistent with the experimental results.

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Detection of Benzoic Acid in Arrowroot by Terahertz Technology

Cited by 2 publications

References 0 publications

Progress in application of terahertz time-domain spectroscopy for pharmaceutical analyses

Progress in application of terahertz time-domain spectroscopy for pharmaceutical analyses

Vibration and Terahertz Wave Absorption Characteristics of Graphene Material

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