| 1 | Conclusion : There is a compound which is very similar to ferulic acid in the decoction of Herb Leonuri. | |
| 2 | The retention time of a peak in the HPLC of the sample corresponded to that of ferulic acid. | |
| 3 | The results showed that no significant relativity between the commercial grades and the Ferulic acid. | |
| 4 | Results: The chromatogram of the sample showed a dark brown fluorescent spot at the same Rf value of ferulic acid in TLC identification test. | |
| 5 | A method based on capillary zone electrophoresis was developed for the determination of the conversion rate constants of ferulic acid. |