Paper
23 August 2013 Characteristics of chiral and racemic ketoprofen drugs using terahertz time-domain spectroscopy
Yong Du, Jianjun Liu, Zhi Hong
Author Affiliations +
Proceedings Volume 8909, International Symposium on Photoelectronic Detection and Imaging 2013: Terahertz Technologies and Applications; 89090M (2013) https://doi.org/10.1117/12.2033147
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China
Abstract
Absorption spectra of chiral S-(+)- and racemic RS-ketoprofen pharmaceutical molecules in crystalline form were recorded in the terahertz region between 6 and 66 cm-1 (0.2 ~ 2.0 THz) by using time-domain terahertz spectroscopic (THz-TDS) measurement. Different distinctive absorption features were observed which are strikingly sensitive to the change of subtle conformational structures within such isostructural crystal molecules. The results suggest that the THz-TDS technique can be definitely used for distinguishing between chiral and racemic compounds in pharmaceutical and biological fields.
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Yong Du, Jianjun Liu, and Zhi Hong "Characteristics of chiral and racemic ketoprofen drugs using terahertz time-domain spectroscopy", Proc. SPIE 8909, International Symposium on Photoelectronic Detection and Imaging 2013: Terahertz Technologies and Applications, 89090M (23 August 2013); https://doi.org/10.1117/12.2033147
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KEYWORDS
Terahertz radiation

Terahertz spectroscopy

Absorption

Spectroscopy

Crystals

Molecules

Molecular interactions

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