Captiva emr lipid columns

THC, THC-COOH, THC-OH, THC-D3, THC-COOH-D3, and THC-OH-D9 were purchased from Cerilliant (Round Rock, TX, USA). A second set of THC, THC-OH, and THC-COOH was purchased from Lipomed (Cambridge, MA, USA) to be used for quality control samples. Water and acetonitrile (LC–MS-grade) were obtained from Millipore (Burlington, MA, USA). Dansyl chloride, sodium bicarbonate, sodium carbonate, acetic acid, and formic acid (LC–MS-grade) were obtained from Sigma-Aldrich (St. Louis, MO, USA). Captiva EMR-Lipid columns (1 mL, 40 mg) were purchased from Agilent Technologies (Santa Clara, CA, USA). Chromatography was performed with a Kinetex Phenyl Hexyl column (3.0 × 50 mm, 2.6 μm) purchased from Phenomenex Inc. (Torrance, CA, USA).

CBD, 7-hydroxy-CBD, 7-carboxy-CBD, 7-hydroxy-CBD-D3, and 7-carboxy-CBD-D3 were obtained from Cerilliant (Round Rock, TX, USA). CBD, 7-hydroxy-CBD, 6-hydroxy-CBD was also obtained from Cayman Chemical (Ann Arbor, MI, USA). Water, methanol, and acetonitrile (LC–MS grade) were procured from Millipore (Burlington, MA, USA). Dansyl chloride, sodium bicarbonate, sodium carbonate, acetic acid, and formic acid (LC-MS-grade) were bought from Sigma-Aldrich (St. Louis, MO, USA). Captiva EMR-Lipid columns (1 mL, 40 mg) were acquired from Agilent Technologies (Santa Clara, CA, USA). Chromatography was performed with a Restek raptor biphenyl column (2.1 × 100 mm, 5 μm) purchased from Restek Inc. (Bellefonte, PA, USA).