Thanks to all of you who replied to my IHC question. However,  I think I
may have asked the question the wrong way.   I guess what I really
wanted to know was if there is a way to remove the DAB from the tissue.
I imagine that the antibodies can be eluted off by washing the slides in
a salt solution of high ionic strength,  similar to chromatographic
methods.  I presume this will leave the DAB precipitate in place?
Any thoughts on this???

--
Luis Chiriboga Ph.D, H.T. (ASCP) QIHC
New York University School of Medicine
Department Of Pathology 4W27, Bellevue Hospital
27st & First Avenue
New York, NY 10016