Tetrahydrocannabinol mass spectrum

Figure 4.3 Electron-impact mass spectrum of the TMS ether of A -tetrahydrocannabinol.

Figure 4.7 Mass spectrum of A -tetrahydrocannabinol from a herbal sample of cannabis after derivatization with N,0-BSA.

Figure 8 Use of the isotope doublet technique. (Top) El (25 eV) mass spectrum of the b/s-TMS derivative of monopalmitin. (Centre) El (25 eV) mass spectrum of the b/s-TMS derivative of the major hydroxy metabolite of A -tetrahydrocannabinol. The two compounds have the same molecular weight and their spectra contain the same base peak. (Bottom) The spectrum of the metabolite obtained following the use of a 1 1 molar ratio of the drug and its [ H4]-analog.

Figure 5 Chromatograms after performing SPME on human saliva samples (A) prior to and (B,C) after marijuana smoking. A and C show the reconstructed selected ion chromatograms obtained by monitoring three characteristic ions of A -tetrahydrocannabinol. The insert on B shows the mass spectrum for the peak at 16.99 minutes, identified as A -tetrahydrocannabinol. (From Ref. 45.)...

---