Figure 2

MS/MS spectra library of CBD and Δ9-THC homologs by UHPLC-HESI-Orbitrap. Comparison of the high-resolution fragmentation spectra in positive (ESI+) mode for CBD (panel A) and Δ9-THC (panel B) homologs. The pale-yellow box point out the constant terpenic portion. The red lines highlight the shift of some fragments corresponding to the loss of a methylene portion (CH2, m/z = 14) moving from CBDP (or Δ9-THCP) to CBDV (or Δ9-THCV).