Common Staining Solutions Flashcards
staining solution most commonly used for routine histologic studies
hematoxylin
the color of hematoxylin is depended on what salt
Aluminum salt - blue
ferric salt - blue black
most commonly used staining system
H&E
T/F
hematoxylin (basic): stain acidic
eosin(acidic): stain basic
TRUE
recommended for progressive staining of tissues; can be used in regressive staining
aluminum hematoxylin stain
the procedure in which the neutralize the acid and free the OH group, to form an insoluble blue aluminum hematin-tissue-lake
blueing
in blueing alum-hematoxylin, what is the commonly used
warm tap water
water is not sufficiently alkaline, what may be used
lithium carbonate
bicarbonate
potassium/sodium acetate
used to accelerate blueing of thin paraffin sections
Scott’s Tap Water Substitute
may be “hard” on delicate tissues and may loosen and cause sections to fall off the slides during staining.
ammonia
has a tendency to form crystalline deposits unless the slides are agitated in it and washed well afterwards.
lithium carbonate
slows down the process of blueing; sections may even produce pink artifact discolorations on the tissue
cold water
acts as a stabilizer, retards evaporation of the solution, and appears to slow down ripening
glycerin
not an ideal stain for frozen sections
ehrlich hematoxylin
good regressive stain that may either be used immediately or stored for future use
harris hematoxylin