A Two Dimensional Cryofocusing GC/EI-MS Method for Determination of Delta-9-tetrahydrocannabinol, 11-Hydroxy-delta-9-tetrahydrocannabinol, and 11-Nor-9-carboxy-delta-9-tetrahydrocannabinol in Human Urine

Presenting section:
Toxicology
Lowe, Ross H., Baltimore MD; Huestis, Marilyn A., Severna Park MD; Abraham, Tsadik, Baltimore MD