problem with a negative controls

Jose de las Heras jose.delasheras at virgin.net
Sat Jul 31 05:12:08 EST 2004


"Wolfgang Schechinger" <hubahopp at gmx.de> wrote in message
news:3.0.6.32.20040731022008.00eee438 at pop.gmx.net...
>[...]
> If you're using supposed non-GMO products as negative controls it could
> simply mean that they contain GMO below the official treshold or they are
> fake or wrongly labelled.

One shouldn't discard this possibility completely.

We once tested some minced "beef", and the antibodies we used went crazy for
a couple of other species, not just what would be expected for a little
contamination (using same machine for different meats etc).

Jose





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