A-sample

A-sample

n
(General Sporting Terms) the primary urine or blood sample used in doping tests in professional sports; if the A-sample tests positive, the B-sample is tested to confirm or invalidate the results. See also B-sample
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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The news of O'Reilly's positive A-sample has rocked a tight-knit boxing squad that was focused on at least emulating the four medal haul from London 2012.
The club confirmed in a short statement last night that Toure had been informed by the FA that an A-sample provided by him returned positive.
The club confirmed in a short statement on their website that Toure had been informed by the Football Association that an A-sample provided by him returned positive.
The 26-year-old Manu Samoa international's A-sample tested positive for an as-yet undisclosed substance at a routine check carried out by UK Sport at Cov's home game against Rotherham on September 9.
The A-sample from John Gosden's filly was positive for a prohibited substance, and should the secondary analysis produce a similar result she is likely to be stripped of the pounds 152,000 prize, which will be awarded to the runner-up, Mick Channon's Flashy Wings.
The 32-year-old full-back will have his B-sample analysed next week after his A-sample tested positive for a banned, but as yet unnamed, substance following his side's 0-0 Uefa Cup draw with Skoda Xanthi in Greece last month.
This positive test result was found in the A-sample. In the course of next week, the B-sample will be analysed.
The A-sample returned by the 27-year-old contains traces of CERA, a 'third generation' form of EPO found in three riders' urine samples in the Tour de France.
Chelsea have a legal right to sack Bosnich after his B-sample last week confirmed the findings of his earlier A-sample and also revealed traces of cocaine.
He said: "This positive test result was found in the A-sample. In the course of next week, the B-sample will be analysed.