Fehling's solution

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Related to Fehling test: Benedict test, Barfoed's test

Feh·ling's solution

 (fā′lĭngz)
n.
An aqueous solution of copper sulfate, sodium hydroxide, and potassium sodium tartrate used to test for the presence of sugars and aldehydes in a substance, such as urine.

[After Hermann von Fehling (1812-1885), German chemist.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Fehling's solution - 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
solution - a homogeneous mixture of two or more substances; frequently (but not necessarily) a liquid solution; "he used a solution of peroxide and water"
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References in periodicals archive ?
Test procedures carried out were, foaming assay for saponins; dragendorff's test for Alkaloids; baljet test for sophisticated lactones; liebermann-burchard test for triterpenes and steroids; fehling test for reducing sugars; ninhydrine test for amino acids; shinoda assay for flavonoids; borntragers test for quinines; salkowski test for terpenoids; ferric chloride test for tannins; and kedde's assay for cardiotonic glycosides.
d) Fehling Test for Combined Reducing Sugar: Small quantity of each extract was hydrolyzed by boiling with 5 ml of dilute HCl and the resulting solution neutralized with NaOH solution.
Theodore Peters, Jr., PhD, DABCC, FACB, developed a fascination with chemistry as a young boy in Chambersburg, PA, watching his physician father perform Fehling tests for urinary sugar and hanging around the back room of the nearby apothecary.