Figure 2
From: A new ESI-LC/MS approach for comprehensive metabolic profiling of phytocannabinoids in Cannabis
Observed chromatographic and MS characteristics of phytocannabinoid standard materials. (A) Total ion current (TIC) chromatogram of the 13 available phytocannabinoid standards, and their MS/MS spectra according to (B) CBG, (C) Δ9-THC, (D) CBD, (E) CBC, (F) Δ8-THC, (G) CBL, (H) CBN, (I) CBGA, (J) Δ9-THCA, (K) CBDA, (L) Δ9-THCV, (M) CBDV, and (N) CBDVA. Fragmentation structures for (O) CBG, (P) Δ9-THC, (Q) CBD, (R) CBC, (S) Δ8-THC, (T) CBL, and (U) CBN were determined according to the observed MS/MS spectra of each phytocannabinoid. Values of m/z in this figure are presented as nominal masses to improve interpretation of spectra. Accurate masses for the main fragments appear in Supplementary Figs S3–S9. The blue and green highlights mark identical m/z fragments for the neutral and acid phytocannabinoids.
