Direct quantification of 11-nor-Δ9-tetrahydrocannabinol-9-carboxylic acid and its glucuronide in urine using liquid chromatography-tandem mass spectrometry

Woonyong Kwon, Jin Young Kim, SungIll Suh, Moon Kyo In
  • Analytical Methods, January 2013, Royal Society of Chemistry
  • DOI: 10.1039/c3ay26615j