Hello,
We are trying to detect accurately the beta amyloid concentration of our solutions with ELISA kits, but we almost never get the concentration that we know that is been analyzed. We have tried different kits as we have read that some kits have BSA in its sample diluyent, but we still don't get it so we don't know what is the key. We prepare the beta amyloid solutions with HFIP and HEPES now, but we have already tried DMSO instead of HEPES. Anyone has any idea?
Thank you so much!