Hello all,
We have begun to see a drop in the performance of some of our in house produced
antibodies. In one case the Ab was produced and affinity purified in 1997 and
stored at -80C at 1mg/ml in PBS and now is no longer efficacious. This is
concerning since we have a number of other Abs that are stored similarly. I’ve
been looking, unsuccessfully, for a publication that has analyzed the shelf
life of antibodies. If you know of a publication or have your own information
about storage life I’d be very happy if you would share that info.
Any feedback greatly appreciated.