[ Objective] The aim was to investigate the Yi nationality plant medicine by thermal analysis technique. [ Method] Wabuyou and other Yi nationality plant medicine were determined by DTA-TGA and DSC in the static air, the identification was compared according to peak shape and characteristics of map. [ Result ] The peak＇ s temperature and numbers of DTA curves were obvious among different kinds of samples. The peak of DTA curves is different among different tissue of the same sample. The characteristic peak of DSC curve is more obvious among different samples. [ Conclusion] The thermal analysis technique is a kind of effective identification method. The characteristic peak of DTA can be used to identify Yi national plant medicine. The characteristic peak of DSC can be used to further identify Yi national plant medicine.
Journal of Anhui Agricultural Sciences