Fehling's solution
noun Etymology: Hermann Fehling died 1885 German chemist Date: 1873 a blue solution of Rochelle salt and copper sulfate used as an oxidizing agent in a test for sugars and aldehydes

New Collegiate Dictionary. 2001.

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  • Fehling's solution — is a solution used to differentiate between water soluble aldehyde and ketone functional groups, although ketose monosaccharides (such as fructose) will also test positive, due to conversion to aldoses by the base in the reagent [ [http://www.uni …   Wikipedia

  • Fehling's solution — Solution So*lu tion (s[ o]*l[=u] sh[u^]n), n. [OE. solucion, OF. solucion, F. solution, fr. L. solutio, fr. solvere, solutum, to loosen, dissolve. See {Solve}.] 1. The act of separating the parts of any body, or the condition of undergoing a… …   The Collaborative International Dictionary of English

  • Fehling's solution — [fā′liŋz] n. a blue solution of copper sulfate, Rochelle salt, and sodium hydroxide, used to test for the presence of a sugar, aldehyde, etc.: also called Fehling s reagent * * * …   Universalium

  • Fehling's solution — [fā′liŋz] n. a blue solution of copper sulfate, Rochelle salt, and sodium hydroxide, used to test for the presence of a sugar, aldehyde, etc.: also called Fehling s reagent …   English World dictionary

  • Fehling's solution — Feh·ling s solution fā liŋ(z) or Feh·ling solution liŋ n a blue solution of Rochelle salt and copper sulfate used as an oxidizing agent in a test for sugars and aldehydes in which the precipitation of a red oxide of copper indicates a positive… …   Medical dictionary

  • Fehling's solution — /ˌfeɪlɪŋz səˈluʃən / (say .faylingz suh loohshuhn) noun a solution of copper sulphate and Rochelle salt in alkali, which is used for the detection and quantitative estimation of sugars and other reducing agents. {named after Hermann Fehling,… …   Australian English dictionary

  • Fehling's solution — n. aqueous alkaline solution used to test for the presence of sugars and aldehydes in a substance (named after its developer: Hermann von Fehling) …   English contemporary dictionary

  • Fehling's solution — noun a liquid solution of copper sulfate and potassium tartrate and sodium hydroxide that is used to test for sugar in the urine; solution turns reddish when sugar is present • Hypernyms: ↑solution …   Useful english dictionary

  • Fehling's solution — noun an alkaline solution of copper sulphate which changes from blue to red in the presence of an aldehyde or a reducing sugar …   Wiktionary

  • Fehling's test — a test for detecting the presence of sugar in urine; it has now been replaced by better and easier methods. It uses Fehling s solution, of which there are two components: Fehling s I (a copper sulphate solution) and Fehling s II (a solution of… …   Medical dictionary

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