Revision as of 21:16, 3 October 2005 by WikiConvertor (Talk)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

reagent --> periodic acid Schiff reaction

(Science: technique) A histochemical technique based on periodic acid oxidation of a substance containing the 1,2-glycol grouping.

It is used for staining carbohydrates as the resulting dialdehyde reacts with Schiff reagent to form a coloured product.

The adjacent hydroxyl groups are oxidized to form aldehydes by periodic acid (HIO4) and these aldehyde groups react with Schiff's reagent (basic fuchsin decolourised by sulphurous acid) to give a purple colour.

Acronym: PAS

Retrieved from ""
First | Previous (Ready) | Next (Reagent kits diagnostic) | Last
Please contribute to this project, if you have more information about this term feel free to edit this page.