periodic acid-Schiff


: relating to, being, or involving a reaction testing for polysaccharides and related substances in which tissue sections are treated with periodic acid and then Schiff's reagent with a reddish violet color indicating a positive test caused by the reaction with Schiff's reagent of aldehydes formed by the oxidation of hydroxyl groups on adjacent carbon atoms or of adjacent hydroxyl and amino groups

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“Periodic acid-Schiff.” Medical Dictionary, Merriam-Webster, Accessed 15 Apr. 2024.

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