The samples of Mosquera and Garcia Da Pena were tested at a World Anti-Doping Agency (Wada) accredited laboratory in Cologne.

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"Only a full analysis performed at an accredited laboratory can determine the presence of a biological agent such as ricin, " according to the bureau.

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Devices certified by MasterCard, such as the Lumia 610 NFC, go through a rigorous testing process by a MasterCard accredited laboratory to ensure they will work seamlessly with the PayPass network.

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Dr Dror's and Dr Hampikian's experiment presented data from a real case to 17 DNA examiners working in an accredited government laboratory in North America.

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However, the UCI said the concentration found by the laboratory was estimated at 50 picograms - 400 times less than anti-doping laboratories accredited by the World Anti-Doping Agency (Wada) must be able to detect.

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