Hall's bile stain - not really a stain but a reaction, like the Perls prussian blue reaction for iron - uses trichloracetic acid and ferric chloride to oxidize yellow-brown bilirubin to bright green biliverdin. Or so I've been told - I've never seen one.
Something I've wondered about for a long time: could Hall's reaction be used to demonstrate meconium in macrophages in the chorion of the human placenta? These can be hard to see, particularly if you don't have a very good microscope. - If this would work, it would provide a ready source for controls, at least for the hospital pathologist. Bob Richmond Samurai Pathologist Knoxville TN _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet
