Study on fingerprint and quantitative analysis of Verbena officinalis water extract by LC–MS and HPLC

Verbena officinalis L. as a medical plant has been used to treat many diseases. However, the quality control underlying V. officinalis remains to be studied. HPLC fingerprint analysis and the qualitative and quantitative analysis of water extract from V. officinalis were carried out, and it was found that the quality varies according to habitat and batch. Verbenalin could be a crucial component in the quality evaluation of V. officinalis. This study contributes to better understanding of quality control for V. officinalis.