Evaluating the Effects of Solid‐Phase Cartridge Chemistry on Extraction of Bisphosphonates and ITPP From Equine Plasma

Bisphosphonate drugs and myo-inositol trispyrophosphate are of concern to the racing industry and have been listed as prohibited substances in…

Improving the Determination of Carbon Isotope Ratios of Endogenous Steroids Found in Human Serum

A method employing high-performance liquid chromatographic sample cleanup to determine the carbon isotope ratios of steroids found in human serum…

Carbon Monoxide Rebreathing as a Doping Method—A Toxic Debate

Drug Testing and Analysis, EarlyView.

Rapid Analytical Method for Quantification of Gamma‐Hydroxybutyrate (GHB) in Hair by UPLC‐MS/MS

A rapid and simple UPLC-MS/MS method for quantification of GHB in 10 mg of hair was developed. The method was satisfactorily…

Evaluation of Minimum Reporting Limits to Determine In‐Competition Use of Stimulants

Subjects were administered commonly prescribed doses of prescription stimulants once a day for 5 days. Urinary concentrations exceeded the MRL for…

Pharmacokinetics of Ethyl Glucuronide and Ethyl Sulfate and Pharmacodynamic Effects Following Intravenous and Oral Administration of Ethanol to Exercised Horses

This study describes the pharmacokinetics of ethanol metabolites following intravenous and oral administration to horses. Based on rapid metabolism, ethyl…