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Terahertz spectral detection of potassium sorbate in milk powder
Author(s): Pengpeng Li; Yuan Zhang; Hongyi Ge
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Paper Abstract

The spectral characteristics of potassium sorbate in milk powder in the range of 0.2~2.0 THz have been measured with THz time-domain spectroscopy(THz-TDS). Its absorption and refraction spectra are obtained at room temperature in the nitrogen atmosphere. The results showed that potassium sorbate at 0.98 THz obvious characteristic absorption peak. The simple linear regression(SLR) model was taken to analyze the content of potassium sorbate in milk powder. The results showed that the absorption coefficient increases as the mixture potassium sorbate increases. The research is important to food quality and safety testing.

Paper Details

Date Published: 28 February 2017
PDF: 8 pages
Proc. SPIE 10256, Second International Conference on Photonics and Optical Engineering, 102560A (28 February 2017); doi: 10.1117/12.2268784
Show Author Affiliations
Pengpeng Li, Henan Univ. of Technology (China)
Yuan Zhang, Henan Univ. of Technology (China)
Hongyi Ge, Henan Univ. of Technology (China)


Published in SPIE Proceedings Vol. 10256:
Second International Conference on Photonics and Optical Engineering
Chunmin Zhang; Anand Asundi, Editor(s)

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