Mr. Pengpeng Li Profile

Pengpeng Li

at Henan University of Technology

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Proceedings Article | 28 February 2017 Paper

Terahertz spectral detection of potassium sorbate in milk powder

Pengpeng Li, Yuan Zhang, Hongyi Ge

Proceedings Volume 10256, 102560A (2017) https://doi.org/10.1117/12.2268784

KEYWORDS: Potassium, Millimeter wave sensors

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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.

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