Objective: In order to identify the quality of different geological conditions and plant ages of Xiling Zhimu. Methods: This article uses the terahertz spectroscopy to detect and analyze different geological condition...Objective: In order to identify the quality of different geological conditions and plant ages of Xiling Zhimu. Methods: This article uses the terahertz spectroscopy to detect and analyze different geological conditions and ages of Zhimu (Anemarrhenae Rhizoma) from the same origin. Results: The terahertz time-domain spectroscopy of different geological conditions and ages has a decrease relative to the reference amplitude and has a delay. The refractive index has obvious differences, and the refractive index can be used as a way to identify the tablets. The absorption coefficients of different ages Zhimu samples has significant differences in the range of 1.0-2.0 THz. The absorption coefficients of different geological conditions Zhimu samples has significant differences in the range of 1.1-2.0 THz. Conclusions: The differences caused by different production methods should be considered in the identification of genuine regional drug. When the Zhimu is grown due to different geological conditions and plant ages, its efficacy will also change. we can detect this change by terahertz spectroscopy.展开更多
文摘Objective: In order to identify the quality of different geological conditions and plant ages of Xiling Zhimu. Methods: This article uses the terahertz spectroscopy to detect and analyze different geological conditions and ages of Zhimu (Anemarrhenae Rhizoma) from the same origin. Results: The terahertz time-domain spectroscopy of different geological conditions and ages has a decrease relative to the reference amplitude and has a delay. The refractive index has obvious differences, and the refractive index can be used as a way to identify the tablets. The absorption coefficients of different ages Zhimu samples has significant differences in the range of 1.0-2.0 THz. The absorption coefficients of different geological conditions Zhimu samples has significant differences in the range of 1.1-2.0 THz. Conclusions: The differences caused by different production methods should be considered in the identification of genuine regional drug. When the Zhimu is grown due to different geological conditions and plant ages, its efficacy will also change. we can detect this change by terahertz spectroscopy.
