Definition: A histochemical technique for staining carbohydrates. It is based on PERIODIC ACID oxidation of a substance containing adjacent hydroxyl groups. The resulting aldehydes react with Schiff reagent to form a colored product.
Other names PAS Reaction; Reactions, Periodic Acid-Schiff; Reactions, PAS; Reaction, Periodic Acid-Schiff; Reaction, PAS; Periodic Acid-Schiff Reactions; Periodic Acid Schiff Reaction; PAS Reactions