[Comparative identification on Dai medicine "Pokou" and its processing product].

Objective: To research identification methods of the Dai Medicine "Pokou" (the rhizome of Homalomena gigantea) and its processing product, and provide basis for identification of the drug in further research and application.
Methods: Macroscopic, microscopic observation and TLC and FTIR techniques were used to authenticate this raw medicine and its processing product.
Results: There were certain differences in the macroscopic features. The TLC result and infrared spectra of the samples had also obvious differences. The methods for identification of this raw medicine and its processing product were established, The detailed tissue and powder of this medicine were drawn.
Conclusion: The results provided the basis for identification of the medicine and establishment of its quality standard.