Entry from British & World English dictionary
noun[mass noun] Chemistry
An acid solution of fuchsin decolorized by sulphur dioxide or potassium metabisulphite, used in testing for aldehydes (which restore the magenta colour).
- Root sections were counterstained with periodic acid and Schiff's reagent.
- The procedure involved first the oxidation of carbohydrates with periodic acid followed by reaction with the fluorescent Schiff's reagent pararosanilin.
- Semi-thin sections were incubated first with periodic acid for 8 minutes, rinsed in distilled water and then treated in the dark with Schiff reagent for 15 minutes to reveal carbohydrates.
Late 19th century: see Schiff base.
For editors and proofreaders
Line breaks: Schiff's re|agent
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