Romanowsky blood stain

Ro·ma·now·sky blood stain

(rō-mah-nof'skē),
prototype of the eosin-methylene blue stains for blood smears, using aqueous solutions made of a mixture of methylene blue (saturated) and eosin. Romanowsky-type stains depend for their action on compounds formed by interaction of methylene blue and eosin; most are of no value if water is present in the alcohol because neutral dyes precipitate.

Ro·ma·now·sky blood stain

(rō-mah-nof'skē blŭd stān)
Prototype of the eosin-methylene blue stains for blood smears, using aqueous solutions made of a mixture of methylene blue (saturated) and eosin. Romanowsky-type stains depend for their action on compounds formed by interaction of methylene blue and eosin; most are of no value if water is present in the alcohol because neutral dyes become precipitated.

Romanowsky,

Dimitri L., Russian physician, 1861-1921.
Romanowsky blood stain - prototype of the eosin-methylene blue stains for blood smears.