Terahertz spectroscopy for quantifying solid mixtures

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Status	已發表Published
	Terahertz spectroscopy for quantifying solid mixtures
	Wang Y.; Kang K.; Chen Z.; Zhao Z.; Zhang L.
	2009-02-01
Source Publication	Qinghua Daxue Xuebao/Journal of Tsinghua University
ISSN	10000054
Volume	49 Issue:2 Pages:161-164
Abstract	A quantitative detection method based on the terahertz absorption spectra was developed to analyze solid mixture. Specifically mixtures of anhydrous theophylline and lactose monohydrate were analyzed experimentally. Samples with known compositions were used to calibrate the system which was then used to measure the theophylline and lactose concentrations with average errors of 5.39% and 6.91%, respectively. With lactose as an unknown component, the absorption peak was fitted with the Lorentzian lineshape and a polynomial. The theophylline concentrations calculated using the peak intensity had an average error of 6.64%. These results demonstrate that the system can be used to quantitatively analyze mixture components based on the characteristic information in terahertz spectra for quality control applications.
Keyword	Concentration prediction Lactose Mixture Terahertz spectroscopy Theophylline
URL	View the original
Language	英語English
Fulltext Access	View Full-Text via Scopus
Document Type	Journal article
Collection	University of Macau
Affiliation	Tsinghua University
Recommended Citation GB/T 7714	Wang Y.,Kang K.,Chen Z.,et al. Terahertz spectroscopy for quantifying solid mixtures[J]. Qinghua Daxue Xuebao/Journal of Tsinghua University, 2009, 49(2), 161-164.
APA	Wang Y.., Kang K.., Chen Z.., Zhao Z.., & Zhang L. (2009). Terahertz spectroscopy for quantifying solid mixtures. Qinghua Daxue Xuebao/Journal of Tsinghua University, 49(2), 161-164.
MLA	Wang Y.,et al."Terahertz spectroscopy for quantifying solid mixtures".Qinghua Daxue Xuebao/Journal of Tsinghua University 49.2(2009):161-164.

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