Fig. 4
A total ion current chromatogram showing the elution of the ten cannabinoids in the Cayman Chemical Cannabinoid standard Mixture 10 (product code: 21305), 70 ng on column and 5-alpha-cholestane as internal standard. Cannabidiol acid and Δ9-tetrahydrocannabinol coeluted in one peak so deconvolution is required for quantification