My lab has been having a problem with "specks" appearing on our slides after they come out of Histoclear. Our protocol is to dehydrate in 2 minutes each of 70%, 80%, 95%, and 100% ethanol before 2 minutes 2 times in Histoclear. The slides are perfectly clear when they come out of the ethanols, but not when they come out of the Histoclear. Since it's not a problem we had when we first started, I tried changing out the Histoclear, but the problem remained. At the end of last week, I changed out everything - all glassware, all ethanols, all Histoclear. The problem went away and the 24 slides looked fine. Today, the slides are looking speckled again. So I guess my questions are: What could be causing the speckled appearance of the slides? and How often should I have to change the ethanols and Histoclear? I seem to remember years ago when I did this that we only changed the solutions monthly...
Nicky Gautier Research Associate _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet
