[Histonet] malarial pigment removal

[Bartlett, Jeanine]

Histonetters:
 
What is the simplest and most frequently used procedure for removal of
malarial and/or formalin pigment?  I have heard concentrated sulfuric
acid works well but I do not know the time necessary in the acid.  I
have used saturated alcoholic picric acid in the past but no longer have
picric acid in my lab.  I have also heard of the Gridley technique.
 
I just wondered what everyone else is using.
 
Thanks in advance!
 
Jeanine Bartlett, HT(ASCP)
Centers for Disease Control and Prevention
Infectious Disease Pathology Activity
1600 Clifton Road, MS/G-32
Atlanta, GA 30333