
The staining procedure is intended for histological staining of the microorganism Helicobacter pylori in tissue sections. Romanowsky dyes or stains contain a mixture of the basic dye, methylene blue, and the acid dye, eosin. These polychromatic stains provide a wide color range when staining tissues and blood smears. Polychromatic stains were initially named for their capability to form metachromatic dyes, particularly on standing in solution or at an alkaline pH. BioGenex