Matt, often a faint light green counterstain for the PAS or GMS  stains is 
caused by not rinsing long enough after the periodic  acid.  Also the light 
green often needs a fairly rapid dehydration  before clearing and coverslipping.
 
Donna Emge, HT(ASCP)
Northwestern University
303 E. Superior, Lurie 7-220
Chicago, IL 60611
312-503-2036
_d-emge@northwestern.edu_ (mailto:d-emge@northwestern.edu) 



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