Cannabis Research A-Z

Undated - Study - Delta(9)-Tetrahydrocannabivarin testing may not have the sensitivity to detect marijuana use among individuals ingesting dronabinol

2012 - Study ~ Unexpected interference of baby wash products with a cannabinoid (THC) immunoassay.

2011 - Study ~ The current status of community drug testing via the analysis of drugs and drug metabolites in sewage

2011 - Study ~ A method for CP 47, 497 a synthetic non-traditional cannabinoid in human urine using liquid chromatography tandem mass spectrometry

2011 - Study ~ Liquid chromatography-tandem mass spectrometry analysis of urine specimens for K2 (JWH-018) metabolites.

2011 - Study ~ Zinc Reduces the Detection of Cocaine, Methamphetamine, and THC by ELISA Urine Testing. 8 to 11 mg of zinc daily; over 40 mg/day can cause zinc poisoning.

2011 - Study ~ Concentrations of delta9-tetrahydrocannabinol and 11-nor-9-carboxytetrahydrocannabinol in blood and urine after passive exposure to Cannabis smoke in a coffee shop.

2011 - Study ~ Quantitative measurement of JWH-018 and JWH-073 metabolites excreted in human urine.

2011 - Study ~ Differentiating new cannabis use from residual urinary cannabinoid excretion in chronic, daily cannabis users.

2011 - Study ~ Efavirenz interference in urine screening immunoassays for tetrahydrocannabinol.

2010 - Study ~ Urine Drug Screening: A Valuable Office Procedure

2010 - Study ~ Delta9-tetrahydrocannabivarin testing may not have the sensitivity to detect marijuana use among individuals ingesting dronabinol.

2010 - Study ~ Testing for cannabis in the work-place: a review of the evidence.

2010 - Study ~ Quantitation of Total 11-Nor-9-Carboxy-Delta 9-Tetrahydrocannabinol in Urine and Blood Using Gas Chromatography-Mass Spectrometry (GC-MS).

2010 - Study ~ Differentiating new cannabis use from residual urinary cannabinoid excretion in chronic, daily cannabis users.

2010 - Study ~ Detection of cannabigerol and its presumptive metabolite in human urine after Cannabis consumption.

2010 - Study ~ Screening for the synthetic cannabinoid JWH-018 and its major metabolites in human doping controls.

2009 - Study - Extended urinary Delta9-tetrahydrocannabinol excretion in chronic cannabis users precludes use as a biomarker of new drug exposure

2009 - Study - Do Delta(9)-tetrahydrocannabinol concentrations indicate recent use in chronic cannabis users?

2009 - Study - Urinary toxicological screening: Analytical interference between niflumic acid and cannabis

2009 - Study ~ Evaluation of a Human On-site Urine Multidrug Test for Emergency Use With Dogs

2009 - Study ~ Passive inhalation of cannabis smoke--is it detectable?

2009 - Letter ~ Short communication: Urinary excretion of 11-nor-9-carboxy-Delta(9)-tetrahydrocannabinol in a pregnant woman following heavy, chronic cannabis use.

2008 - Study ~ Urine Drug Screening: Practical Guide for Clinicians

2008 - Study - Urinary elimination of 11-nor-9-carboxy-delta9-tetrahydrocannnabinol in cannabis users during continuously monitored abstinence

2007 - Study ~ Urine drug test interpretation: what do physicians know?

2007 - Study ~ Family physicians' proficiency in urine drug test interpretation.

2007 - Study - The effects of adulterants and selected ingested compounds on drugs-of-abuse testing in urine

2007 - Study - Toxicity From the Use of Niacin to Beat Urine Drug Screening

2007 - Study - Simultaneous GC–EI-MS Determination of Δ9-Tetrahydrocannabinol, 11-Hydroxy-Δ9-Tetrahydrocannabinol, and 11-nor-9-Carboxy-Δ9-Tetrahydrocannabinol in Human Urine Following Tandem Enzyme-Alkaline Hydrolysis

2006 - Study - Detection time of regular THC use in urine shorter than often assumed

2005 - Study ~ Papain: a novel urine adulterant.

2004 - Study ~ Passive Inhalation of Cannabis Smoke.

2003 - Study ~ Urinary excretion profiles of 11-nor-9-carboxy-Delta9-tetrahydrocannabinol: a Delta9-THC-COOH to creatinine ratio study #2.

2002 - Study ~ Effects of Stealth adulterant on immunoassay testing for drugs of abuse.

2002 - Study ~ A procedure for the detection of Stealth adulterant in urine samples.

2002 - Study ~ Effects of oxidizing adulterants on detection of 11-nor-delta9-THC-9-carboxylic acid in urine.

2002 - Study ~ Monitoring urinary excretion of cannabinoids by fluorescence-polarization immunoassay: a cannabinoid-to-creatinine ratio study.

2001 - Study - Delta9-tetrahydrocannabivarin as a marker for the ingestion of marijuana versus Marinol: results of a clinical study

2001 - Study ~ Evaluating the impact of hemp food consumption on workplace drug tests.

2000- Study ~ Cannabinoid mimics in chocolate utilized as an argument in court

2000 - Study ~ Effects of pyridinium chlorochromate adulterant (urine luck) on testing for drugs of abuse and a method for quantitative detection of chromium (VI) in urine.

1999 - Study - Potassium nitrite reaction with 11-nor-delta 9-tetrahydrocannabinol-9-carboxylic acid in urine in relation to the drug screening analysis

1999 - Study ~ Urinary excretion profiles of 11-nor-9-carboxy-delta9-tetrahydrocannabinol: a delta9-THCCOOH to creatinine ratio study.

1999 - Study ~ Adulteration of urine by "Urine Luck".

1999 - Study ~ Potassium nitrite reaction with 11-nor-delta 9-tetrahydrocannabinol-9-carboxylic acid in urine in relation to the drug screening analysis

1999 - Study ~ Concentration of Marijuana Metabolites in the Urine After Ingestion of Hemp Seed Tea.

1997 - Study - Hemp oil causes positive urine tests for THC

1997 - Study ~ Hemp oil ingestion causes positive urine tests for Δ9-tetrahydrocannabinol carboxylic acid

1997 - Study ~ A procedure to overcome interferences caused by the adulterant "Klear" in the GC-MS analysis of 11-nor-delta9-THC-9-COOH

1997 - Study ~ Excretion of Cannabinoids in Urine After Ingestion of Cannabis Seed Oil.

1994 - Study ~ Increased detection of marijuana use with a 50 micrograms/L urine screening cutoff.

1993 - Study ~ Effect of freezing on the concentration of drugs of abuse in urine.

1993 - Study ~ High urinary cannabinoids from a hashish body packer.

1990 - Study ~ Cross-reactivity of selected compounds in the Abbott TDx cannabinoid assay.

1988 - Study ~ Marijuana-Laced Brownies: Behavioral Effects, Physiologic Effects, and Urinalysis in Humans Following Ingestion

1987 - Study ~ Cannabinoid intake by passive smoking

1986 - Study ~ Contact highs and urinary cannabinoid excretion after passive exposure to
marijuana smoke

1985 - Study ~ Excretion patterns of cannabinoid metabolites after last use in a group of chronic users

1983 - Study ~ Passive inhalation of marihuana smoke and urinary excretion of cannabinoids

1982 - Study ~ Persistence of Urinary Marijuana Levels After Supervised Abstinence.

1981 - Study ~ Laboratory verification of “heavy” and “light” users of cannabis

1978 - Study ~ Homogeneous enzyme immunoassay for cannabinoids in urine.

1975 - Study ~ Detection of cannabis products in urine by radioimmunoassay.

1972 - Study ~ Confirmation of the Presence of 11-Hydroxy-r 9-Tetrahydrocannabinol in the Urine of Marijuana Smokers

1971 - Study ~ Delta-9-tetrahydrocannabinol: Metabolism and Disposition in Long-term Marihuana Smokers.