Objective: To analyze the dynamic changes of nucleosides and nucleobases in Polygoni Multiflori Radix harvested in different periods.
Methods: UPLC-QTRAP-MS/MS method was applied for the analysis of nine kinds of nucleosides and nucleobases in Polygoni Multiflori Radix.
Results: The content of uridine, adenine, guanosine and cytidine was higher in Polygoni Multiflori Radix harvested in different periods and assumed some difference. The trends of nucleosides and nucleobases from Polygoni Multiflori Radix according to the peak valley shape changed. The highest contents of them were in December.
Conclusion: The accumulation of nucleosides and nucleobases in Polygoni Multiflori Radix is closely related to its growth cycle. It is found to be basically the same as that obtained when the herb is collected during the conventional collecting time.