Dear Researcher

Before that, I just use lc ms to identify phenolic compound in liquid extract. then liquid extract was applied into freeze dryer to become dry sample. after that I applied FTIR to check either my sample still contain phenolic compound after apply with freeze dryer. absorbance range for phenolic is 3600-3100cm-1. my result is 3277.36 cm-1 as file attached. Can I said my sample is still contain phenolic compounds based on the peak 3277.36 is broader than the other IR absorption? thanks