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Interference-free urine?

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Interference-free urine?

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chromeleon
I need to make up standards in urine, working from a paper and this is what they used ("Interference-free urine")

where does one obtain this?!!

Re: Interference-free urine?

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Redi
I once knew a guy from a dopping lab that they used something like this. I think they called this cafeine free urine, because they "colleccted" this from a guy that didn´t drink any coffe, tea, coke, chocolate... and so on... believe or not...

Re: Interference-free urine?

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pharmaguy
My assumption would be it is free of the drug(s) of interest.

Re: Interference-free urine?

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chromeleon
I wrote to the lead author... basically they got lab personnel to submit samples, processed them according to the method to make sure there were no peaks "interfering" with the drug/metabolite peak

there was me searching Sigma-Aldrich for this magical stuff :lol:
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