Keywords: 
• 太赫兹 /
• 药物检测 /
• 中草药 /
• 降糖药 /
• 葡萄糖

Abstract: Due to unique spectral region, functional imaging ability, excellent penetration and safety characteristics of terahertz radiation, the terahertz technology rapidly becomes a vital meth-od to detect and analyze drugs. In this paper, firstly, we identify the functional groups of anti-diabetic drugs by density functional theory (DFT), HIPHOP models and experimental results from terahertz time-domain spectroscopy measurements. Secondly, we identify four kinds of herbs of radix curcum-ae by using the support vector machine (SVM) analysis. Besides, we analyze the absorption of anhy-drous and hydrous glucose, and determine the state of water in the crystalized D-glucose·H2O through the results of differential scanning calorimetry measurement. Finally, we summarize the advantages and disadvantages of terahertz time-domain spectroscopy method in drug detection and analyzation.