How much clen in a steak? About 15ng/g, so about 3.5 ug for an 8 oz steak.
Divide that by the volume of blood and you get 750pg/mL. Or about 15 times the detected amount. Now taking into account clearance rates, it must have been either a rather large steak, or the cow was drugged up until the day it was slaughtered.
Where do you get 15ng/g from?
Academic papers looking at Clen accumulation and clearance in beef under certain diets and dosages. Liver is higher, eyeballs are about 100 times higher.
The reason clenbuterol is banned in animals is that there have been cases of people turning up in hospitals with overdose symptoms and levels up to the 450 ng level, 9000 times more than Clenbutador's 50 pg. Presumably the steak (or liver) eaten in that case must have had a much higher level of contamination.
450ng in what? Blood? I'd suggest those levels were from long term systemic accumulations.
I was looking at the 'I had one dodgy steak' argument and looking at the likely numbers.Not'I have been eating dodgy steaks all my life.'
If one would expect a slaughterhouse test to be passed by the beef, then Contadors story doesn't add up with the quantities consumed.
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Slaughterhouse testing is designed to prevent clenbuterol poisoning. How sensitive are the tests? I can't see them being a great deal more sensitive than necessary to prevent poisoning of a small person who was fond of liver, plus a safety margin.
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About 1ng/g in tissue.
