is one of several metabolic products of cocaine.
The measured concentration ranges in oral fluid (in [micro]mol/L) were as follows: amphetamine, 0.26-243 (n = 12); metamphetamine, 0.24-84 (n = 8); MDMA, 0.15-13 (n = 5); MDA, 0.27-3.2 (n = 4); morphine, 0.040-11 (n = 12); codeine, 0.024-20 (n = 12); cocaine, 0.015-0.020 (n = 3); benzoylecgonine
, 0.028 (n = 1); methadone, 0.83-0.85 (n = 2); diazepam, 0.0040-0.080 (n = 6); N-desmethyldiazepam, 0.010-0.15 (n = 4); 3-OH-diazepam, 0.010 (n = 1); oxazepam, 0.010 (n = 1); alprazolam, 0.010-0.20 (n = 5); zopiclone, 0.010-0.24 (n = 6); clonazepam, 0.0022-0.74 (n = 4); 7-aminoclonazepam, 0.0080-1.1 (n = 4); flunitrazepam, 0.0040-1.6 (n = 5); 7-aminoflunitrazepam, 0.0010-0.61 (n = 6); nitrazepam, 0.0030-0.012 (n = 4); and 7-aminonitrazepam, 0.00500.13 (n = 3).
The sample taken on July 10 was found to contain benzoylecgonine
which is a diagnostic metabolite of cocaine.
The GC/MS assay for benzoylecgonine
frequently had to be repeated because of a large contaminant that co-eluted with the benzoylecgonine
He denied driving without due care and attention when three times over the legal limit for the main metabolite of cocaine, Benzoylecgonine
She had 200 micrograms per litre of benzoylecgonine
, a metabolite of cocaine, in her blood.
He is charged with testing positive for a banned substance after his urine sample was found to contain benzoylecgonine
, a metabolite of cocaine, and conduct prejudicial to the integrity, proper conduct and/or good reputation of horseracing over his actions in attempting to use another jockey's sample.
The spokeswoman said that toxicology tests revealed the amount of benzoylecgonine
, a product of cocaine, in his system was 79 times over the specified concentration allowed in law for that substance.
The 24-year-old tested positive for the presence of benzoylecgonine
, a metabolite of cocaine, after Shels' 0-0 draw with Cabinteely in the SSE Airtricity League First Division on September 5 last year.
A statement from the UCI, cycling's world governing body, read: "The antidoping tribunal found the rider guilty of a non-intentional anti-doping rule violation (presence of a cocaine metabolite - benzoylecgonine
) and imposed an 18-month period of ineligibility on the rider."
Burnett, from Cwmparc, Rhondda, tested positive for benzoylecgonine
, a metabolite of cocaine, on November 3 last year at the PDC Grand Slam Qualifier at Robin Parks Sports Centre in Wigan.
The 25-year-old second rower was found to have Benzoylecgonine
, a metabolite of cocaine, in his system after he was tested following Wigan's home match against Salford earlier this month.