Cactus alkaloids XL. Identification of mescaline and other ?-phenethylamine in Pereskia, Pereskiopsis and Islaya by use of fluorescamine conjugates.


Doetsch, P.




J. Chromatograph

The combined methods of analytical thin-layer chromatography (TLC), high-performance TLC, and gas-liquid chromatography (GLC) have been used to identify specific alkaloids in twelve cactus species. TLC of fluorescamine conjugates, prepared from primary amines in the alkaloid extracts, served to substantiate results from the other chromatographic identifications. Traces of the hallucinogen, mescaline, were identified and quantitated by GLC in Islaya minor Backbg., Pereskia corrugata Cutak, Pereskia tampicana Weber, and Pereskiopsis scandens Br. and R., demonstrating that this alkaloid is distributed through all three cactus tribes.