Alcian Blue and Periodic Acid Schiff Staining Method

**Semantic type:** Laboratory Procedure

**Definition:** A microscopy staining method that utilizes periodic acid, an oxoacid of iodine, Schiff reagent, the reaction product of fuchsine and sodium bisulfite, and Alcian blue, a water soluble copper phthalocyanine dye. This staining method is used to differentially stain glycoproteins.

**Synonyms:** - ALCIAN BLUE AND PERIODIC ACID SCHIFF STAIN