Lendrum & Mcfarlane Iron Alum-Celestine Blue
for Nuclei
Materials
- An eosin solution, or other counterstain
- Iron alum-celestine blue
Material Amount Ferric ammonium sulfate 5 g Celestine blue B 0.5 g Distilled water 100 mL Glycerol 14 mL
Preparation
- Dissolve the ferric ammonium sulfate in the distilled water.
- Add the celestine blue B.
- Boil for 5 minutes.
- Cool and filter.
- Add the glycerol.
Tissue Sample
5µ paraffin sections of neutral buffered formalin fixed tissue are suitable. Other fixatives are likely to be satisfactory.
Protocol
- Bring sections to water via xylene and ethanol.
- Place into the iron alum-celestine blue solution for 3 minutes to 2 hours.
- Wash with tap water.
- Counterstain with eosin or other counterstain.
- Dehydrate with 95% and absolute ethanols.
- Clear with xylene and mount with a resinous medium.
Expected Results
- Nuclei – blue
- Cytoplasm – pink
Notes
- The iron alum-celestine blue solution is stable for a few months.
- A staining time of 5-10 minutes is usually satisfactory for formalin fixed tissues.
- This method has been recommended as a substitute for Hematoxylin and Eosin.
- The celestine blue solution is a modification of that recommended by Proescher and Arkush, and contains added glycerol.
- Gallamine blue and gallocyanin have also been recommended in this method. Neither dye is as stable as celestine blue, although the colour with gallocyanin most closely resembles alum hematoxylin of all three dyes.
Safety Note
Prior to handling any chemical, consult the Safety Data Sheet (SDS) for proper handling and safety precautions.
References
- Gray, Peter. (1954)
The Microtomist’s Formulary and Guide.
Originally published by: The Blakiston Co.
Republished by: Robert E. Krieger Publishing Co.
Citing:
Lendrum and McFarlane, (1940)
Journal of Pathology and Bacteriology, v. 50, pp. 381
