Ruth Winecker

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Δ9-tetrahydrocannabinol and 11-hydroxy-Δ9-tetrahydrocannabinol as markers of cannabis use in urinary drug testing

Cannabinoid content and label accuracy of various hemp-derived haircare, cosmetic, and edible products available at retail stores and online in the United States

Dose effects of oral and vaporized delta-8-thc and comparison to delta-9-thc in healthy adults

Stability of nano-emulsified cannabidiol in acidic foods and beverages

Fentanyl as a marker of illicit drug use in morphine-positive urine specimens from workplace drug testing

Pharmacokinetics and pharmacodynamics of five distinct commercially available hemp-derived topical cannabidiol products

Prevalence of ∆8-tetrahydrocannabinol carboxylic acid in workplace drug testing

Conversion of water-soluble CBD to Δ9-THC in synthetic gastric fluid-An unlikely cause of positive drug tests

Δ8-THC-COOH cross-reactivity with cannabinoid immunoassay kits and interference in chromatographic testing methods

Performance of hair testing for cocaine use - Comparison of five laboratories using blind reference specimens

Prevalence of Cannabidiol, ∆9- and ∆8-Tetrahydrocannabinol and Metabolites in Workplace Drug Testing Urine Specimens

Update on urine adulterants and synthetic urine samples to subvert urine drug testing

Cannabinoid content and label accuracy of hemp-derived topical products available online and at national retail stores

Urinary pharmacokinetic profile of cannabidiol (cbd), Δ9-tetrahydrocannabinol (thc), and their metabolites following oral and vaporized cbd and vaporized cbd-dominant cannabis administration

Conversion of 7-carboxy-cannabidiol (7-COOH-CBD) to 11-nor-9-carboxy-tetrahydrocannabinol (THC-COOH) during sample preparation for GC-MS analysis

Death from poppy tea consumption

Position paper: Recommendations for the investigation, diagnosis, and certification of deaths related to opioid and other drugs

False-positive enzymatic alcohol results in perimortem specimens

Pharmacodynamic effects of vaporized and oral cannabidiol (CBD) and vaporized CBD-dominant cannabis in infrequent cannabis users

Identification of five mitragyna alkaloids in blood and tissues using liquid chromatography-quadrupole/time-of-flight mass spectrometry