[Progress on application of terahertz time-domain spectroscopy in identification of traditional Chinese medicine].

With the increasing demand for traditional Chinese medicines(TCMs), the resources of TCMs are gradually rare, and the phenomenon that TCMs fake is a common occurrence. Consequently, we need to urgently improve identification technique of TCMs. Terahertz time-domain spectroscopy(THz-TDS) is a newly emerging spectroscopy technology that has been widely used in image, security inspection, biological detection, medicine, material technology, aerospace, oil exploration and other fields. Which is currently used as a simple and quick method to identify the origins, fake products, processed products and pesticide residues of TCMs, hence, it plays a significant role in supplementing and improving the quality control levels of TCMs. In this paper, the composition principle of THz-TDS and its advantages in authentification of TCMs have been summarized. Additionally, the current situation and application prospects of THz-TDS in the field of TCM identification have also been reviewed.