Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Ruth E Winecker"'
Autor:
E Dale Hart, Svante Vikingsson, Ruth E Winecker, Amy L Evans, Edward J Cone, John M Mitchell, Eugene D Hayes, Ronald R Flegel
Publikováno v:
Journal of Analytical Toxicology. 47:154-161
The purpose of this study was to compare results from five commercial hair testing laboratories conducting workplace drug testing with regard to bias, precision, selectivity and decontamination efficiency. Nine blind hair specimens, including cocaine
Autor:
Ruth E. Winecker, Elia Goffi, George E. Bigelow, Ryan Vandrey, John M. Mitchell, Ronald Flegel, Edward J. Cone, David J. Kuntz, Tory R. Spindle, Dennis J. Sholler
Publikováno v:
J Anal Toxicol
The market for products containing cannabidiol (CBD) is booming globally. However, the pharmacokinetics of CBD in different oral formulations and the impact of CBD use on urine drug testing outcomes for cannabis (e.g., 11-nor-9-carboxy-Δ9-tetrahydro
Autor:
Tory R. Spindle, Dennis J. Sholler, Edward J. Cone, Timothy P. Murphy, Mahmoud ElSohly, Ruth E. Winecker, Ronald R. Flegel, Marcel O. Bonn-Miller, Ryan Vandrey
Publikováno v:
JAMA network open. 5(7)
Products containing cannabinoids such as cannabidiol (CBD) have proliferated since 2018, when the Agriculture Improvement Act removed hemp (ie, cannabis containing0.3% Δ9-tetrahydrocannabinol [THC]) from the US controlled substances list. Topical ca
Autor:
E Dale Hart, John M. Mitchell, Ronald Flegel, Ruth E. Winecker, Svante Vikingsson, Eugene D Hayes
Publikováno v:
Journal of Analytical Toxicology. 46:573-576
The growing use of cannabidiol (CBD) products by the general public is expected to result in an increase in the prevalence of CBD and the CBD metabolites in drug testing laboratories. CBD converts into tetrahydrocannabinol (THC) under acid conditions
Publikováno v:
Journal of analytical toxicology. 46(7)
To avoid a positive urine drug test, donors might try to subvert the test, either by adulterating the specimen with a product designed to interfere with testing or by substituting the specimen for a synthetic urine. A market search conducted in Decem
Publikováno v:
Journal of Analytical Toxicology. 44:734-740
The historical practice of brewing poppy tea for its opioid-like effects is reoccurring with modern-day substance users. We present four postmortem cases with toxicology results that serve as case studies for the potential hazards of poppy tea ingest
Publikováno v:
Forensic Toxicology. 38:420-435
Kratom is a botanical drug with psychoactive properties that is increasingly being used recreationally and “therapeutically” in a non-medically supervised setting. Analytical methods for the detection of kratom use in biological matrices are limi
Publikováno v:
Laboratory Medicine. 51:394-401
Herein, we present 2 cases referred to the North Carolina Office of the Chief Medical Examiner (NC OCME) in which ethanol results reported by different hospital laboratories, using alcohol dehydrogenase (ADH)–based assays, were positive, whereas re
Autor:
Svante Vikingsson, Ruth E Winecker, Edward J Cone, David J Kuntz, Brian Dorsey, Martin Jacques, Melanie Senter, Ronald R Flegel, Eugene D Hayes
Publikováno v:
Journal of analytical toxicology. 46(8)
Given the recent popularity of cannabidiol (CBD) use and the emergence of ∆8-tetrahydrocannabinol (∆8-THC), the prevalence and concentrations of these and other cannabinoids were investigated in 2,000 regulated and 4,000 non-regulated specimens f
Autor:
Cecilia L Bergeria, Tory R Spindle, Edward J Cone, Dennis Sholler, Elia Goffi, John M Mitchell, Ruth E Winecker, George E Bigelow, Ronald Flegel, Ryan Vandrey
Publikováno v:
J Anal Toxicol
There is limited data on the comparative pharmacokinetics of cannabidiol (CBD) across oral and vaporized formulations. This within-subject, double-blind, double-dummy, placebo-controlled laboratory study analyzed the pharmacokinetic profile of CBD,