[Histonet] RE: Sudan Black Staining

[Kellar, Eric C]

To slow Sudan Black B (a nonionic, hydrophobic dye) 'bleeding' on unfixed cryostat sections, try running a duplicate slide and compare with this method:

1.	Air dry duplicate slide after staining.
2.	Clear slide through 3 changes of fresh Xylene or Xylene Substitute.
3.	Glass coverslip using a permanent mounting media.

The synthetic mountant will eventually dissolve some of the dye-lipid complex, but it will give you a longer window of time to microscopically examine your slides.


Eric C. Kellar
Histology/Immunohistochemistry
Quest Diagnostics Inc. Miami


Hi,
I am working on the Sudan Black stain.  Do the slides need to be read 
immediately due to bleeding of the stain after approximately 24 hours?

Thanks for any information you can give me about the stain.
Sharon Willman


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