Solid Phase Extraction Method for Analysis of THC, THC-OH, and THC-COOH in Whole Blood

This application note describes a method that is used for the extraction of THC, THC-OH, and THC-COOH in whole blood. LC/MS/MS instrumentation is used for analysis with a linear range of 1 ng/mL to 100 ng/mL with average recoveries of individual cannabinoids found to be greater than 95%.