Fehling's solution

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Related to Fehling solution: Rochelle salt, Benedict solution

Feh·ling's solution

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.
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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 ?
Both Fehling solution A and Fehling solution B were added and heated.
After drying, the dehydrated peels were ground in knife mill to obtain powders and characterized in quadruplicate regarding physical and chemical parameters, namely: moisture content through the standard method of the oven at 105[degrees]C until constant weight, reducing sugars through the method based on the reduction of cupric salts and cuprous oxides present in Fehling solution, total titratable acidity through the acidimetric method, titrating the sample with 0.1 M NaOH solution, and ascorbic acid through the titrimetric method, using 2,6 dichlorophenol-indophenol sodium, according to the methodologies described in the manual of IAL (2008); content of betalains (betacyanins and betaxanthins) according to Lim et al.