Hi Folks,

I realize that this is an off the wall kind of question, but I was
wondering if anyone had any experience detecting polyvinylpyrrolidone in
tissue.  I have a few references stating that Congo Red can be used to
detect this substance.  The one reference that I have followed has used a
1% solution of Congo Red (made in 10% ETOH) followed with a light green
counterstain.  This seems like an awful lot of Congo Red.  Any thoughts?




Thanks in advance,
Margaret