[Histonet] Detecting copper in H&E staining?

[Jennifer Phinney]

Hello all,
I am in a veterinary histology lab. One of my Pathologists mentioned that at two of the locations he'd been at previously (Ithaca, NY and Saskatoon, Canada) copper deposits stained in the routine H&E slides. Is anyone aware of how this could have been achieved? I assume it would either have to be an additive in the eosin or perhaps something naturally occurring in the tap water rinses?


Thanks for any assistance,
Jennifer Phinney QIHC
Histology Laboratory Administrator
KSVDL