[Histonet] Iron stain question

[WWmn916 <@t> aol.com]

Hello again histonetters,
 
Can anyone give me any insight as to why some smear slides stained for iron  
would not stains positive as it was expected they  would? Doctor say's the 
slides should have stained positive for iron because the  patient has leukemia.  
The control stained positive as it should  have. Staining tech is sure all her 
slides were exposed to solution.   Thanks for any help.
 
Deb King, HT(ASCP)
Sacramento, CA