Can anyone make a suggestion on how to eliminate the diry background that
forms on the slide when doing a GMS.  We use a 60 degree oven for the GMS.
The silver is preheated in the oven before putting the slides in.  The
silver is filtered prior to preheating, and we use 1% periodic acid instead
of 5% chromic acid, also we use plus slides for the sections.   Any
suggestions would be appreciated.  Thanks in advance.
Allison Scott HT(ASCP)
Histology Supervisor
LBJ Hospital 
Houston, Texas