| 释义 |
Definition of Schiff's reagent in English: Schiff's reagentnounʃɪfs mass nounChemistry An acid solution of fuchsin decolorized by sulphur dioxide or potassium metabisulphite, used in testing for aldehydes (which restore the magenta colour). Example sentencesExamples - Root sections were counterstained with periodic acid and Schiff's reagent.
- 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.
- 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.
- 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.
Origin Late 19th century: see Schiff base. |