Dear histonetters, We have a sigma pepsin powder (7012) in use for our FISH protocol. The container has to be stored at -20°C, but has no labelled expiration date.
We have been using the same container for the last 18-20 months. Now we have some troubles with the performance of our FISH-signals. My question is for those, you have experience with this kind of product: How long can such pepsin powders be used without lost of activity? Thanks in advance Gudrun Lang Histolab, Austria _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet
