https://www.selleckchem.com/
01-0.1 ng/mg in 11 samples (18.6%), 0.1-5 ng/mg in 33 samples (55.9%), 5-10 ng/mg in 4 samples (6.8%), 10-15 ng/mg in 2 samples (3.4%), 15-20 ng/mg in 4 samples (6.8%), 40-45 ng/mg in 2 samples (3.4%), 45-50 ng/mg in 1 samples 1.7%) and 100 ng/mg in only 2 samples (3.4%). In the hair of ketamine-abusers, 26 of 28 subjects had simultaneously ketamine with detectable levels of other controlled drugs, including MDMA (n=9), MA (n=3), MDMA/MA (n=3), MDMA/PMA (n=3), MDMA/PMA/MA (n=2), cocaine (n=1), and other drugs (n=5, propofol, zolpidem or benzodiazepines)