Hello, does anyone know how to test the alkaloid levels of cacti like San Pedro or Peruvian Torch legally. I am doing a research project and I love farming cacti so I put the two together. Like I a said in the title i'm testing alkaloid levels (mescaline) in cacti with and without stressors. Stressors include lack of water and shade. Please let me know this would really help me get a move on with my project. Thanks and enjoy your day!