Minimum number of tests that can be performed 100
Completion time 1 hour 40 minutes
Shelf life 2 years
Storage conditions 15-25°C
Additional equipment Vertical histology jar, oven
Application
The method of choice for connective tissue, particularly indicated for muscle and glial
fiber, collagen, reticulum, glomerular stroma of the kidney, erythrocytes and nuclear
chromatin on histological sections.
Result
Collagen, reticulum, basophilic cytoplasmic granules of the pituitary gland, juxtaglomerular
granules and glomerular stroma of the kidney: blue
Neurofibrils (glia): reddish
Muscle: orange
Nuclei, erythrocytes and acidophilic granules of the pituitary gland: red
Cytoplasmic granules of the delta cells of the pituitary gland: blue
PRINCIPLE
In this method, two acid dyes are used: azocarmine and aniline blue. A cytological stain with azocarmine is combined with a
counterstain with aniline blue, after treatment with phosphotungstic acid. To obtain good results, it is necessary to overstain
with azocarmine, then slowly differentiate with aniline-alcohol to prevent counterstain from covering stained muscle, collagen
etc.
METHOD
1) Bring sections to distilled water.
2) Pour reagent A into a Coplin jar and incubate the sections at 56° C for 30 minutes. Allow to cool for 5 minutes at room temperature. Recover the dye in the bottle A without filtering.
3) Wash in distilled water.
4) Put on the section 10 drops of reagent B: leave to act 1 minute.
5) Drain the slide without washing and put on the section 10 drops of reagent C: leave to act 1 minute.