Fast confirmation of 11-nor-9-carboxy-Δ9-tetrahydrocannabinol (THCCOOH) in urine by LC/MS/MS using negative atmospheric-pressure chemical ionisation (APCI)

Quantitative measurement of Δ9-tetrahydrocannabinol and two major metabolites in physiological specimens using capillary column gas chromatography negative ion chemical ionization mass spectrometry

Rodger L. Foltz, Kim McGinnis, D. M. Chinn · Journal of Mass Spectrometry · 1983 · 126 citations

Medicine, Biochemistry, Pharmacology +13

Determination of Common Drugs of Abuse in Body Fluids Using One Isolation Procedure and Liquid Chromatography-Atmospheric-Pressure Chemical-Ionization Mass Spectrometry*

M Bogusz, R. D. Maier, Klaus-Dieter Krüger et al. · Journal of Analytical Toxicology · 1998 · 111 citations · Full text

Pharmacy, Pharmaceutical Analysis, Pharmacology +17

Cannabinoids in Humans. II. The Influence of Three Methods of Hydrolysis on the Concentration of THC and Two Metabolites in Urine

P. Kemp, Imad K. Abukhalaf, Joseph E. Manno et al. · Journal of Analytical Toxicology · 1995 · 96 citations · Full text

Medicine, Biochemistry, Pharmacology +13

Simultaneous determination of THC-COOH and THC-COOH-glucuronide in urine samples by LC/MS/MS

Wolfgang Weinmann, Susanne Vogt, Rolf Goerke et al. · Forensic Science International · 2000 · 87 citations

Pharmacy, Pharmaceutical Analysis, Analytical Chemistry +10

Fast Screening for Drugs of Abuse by Solid-Phase Extraction Combined with Flow-Injection Ionspray-Tandem Mass Spectrometry

Wolfgang Weinmann, Michal Svoboda · Journal of Analytical Toxicology · 1998 · 63 citations · Full text

Pharmacy, Pharmaceutical Analysis, Toxicology +16