One of the mysteries of the English language finally explained.
An acid solution of fuchsin decolorized by sulphur dioxide or potassium metabisulphite, used in testing for aldehydes (which restore the magenta colour).
- ‘For Feulgen-based methods, the primary issues in both groups are the preparation of a suitable monolayer of cells, the temperature and duration of acid hydrolysis, and the quality of the Schiff reagent used.’
- ‘Root sections were counterstained with periodic acid and Schiff's reagent.’
- ‘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.’
- ‘The aldehydes are then detected by the Schiff reagent, which stains them reddish purple.’
- ‘The procedure involved first the oxidation of carbohydrates with periodic acid followed by reaction with the fluorescent Schiff's reagent pararosanilin.’
Late 19th century: see Schiff base.
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