Corpus ID: 45995563

"Trace" benzoylecgonine identifications in post-race urines: probable sources and regulatory significance of such identifications.

@inproceedings{Camargo2006TraceBI,
  title={"Trace" benzoylecgonine identifications in post-race urines: probable sources and regulatory significance of such identifications.},
  author={F. Camargo and C. Hughes and A. Lehner and K. Stirling and T. Tobin},
  year={2006}
}
Cocaine is an environmental contaminant in North America. Benzoylecgonine (BZE) is the major urinary metabolite of cocaine in horses and humans, and urinary detection of BZE is highly sensitive. Human workplace drug testing typically uses a confirmatory “cutoff” for BZE of 150 ng/ml in urine. A number of horse-racing jurisdictions have adopted similar urinary “cutoffs” for BZE; this communication presents the scientific basis for these cutoffs and lists jurisdictions with urinary cutoffs for… Expand
A cluster of trace-concentration methamphetamine identifications in racehorses associated with a methamphetamine-contaminated horse trailer: A report and analysis.
TLDR
This incident establishes methamphetamine as a human-use substance that can inadvertently enter the environment of racing horses, resulting in urinary methamphetamine "positives;" an interim regulatory cut-off of 15 ng/mL for methamphetamine in post-race urine is proposed. Expand
Scopolamine in racing horses: trace identifications associated with dietary or environmental exposure.
TLDR
The expected characteristics of inadvertent environmental exposure are presented with a view to making clear the potential of scopolamine identifications, with or without atropine, as a direct and expected outcome of both the worldwide distribution of scopamine-containing plants and the sensitivity of modern equine drug testing. Expand

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