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Benedict's test

A Dictionary of Biology | 2004 | Copyright

Benedict's test A biochemical test to detect reducing sugars in solution, devised by the US chemist S. R. Benedict (1884–1936). Benedict's reagent – a mixture of copper(II) sulphate and a filtered mixture of hydrated sodium citrate and hydrated sodium carbonate – is added to the test solution and boiled. A high concentration of reducing sugars induces the formation of a red precipitate; a lower concentration produces a yellow precipitate. Benedict's test is a more sensitive alternative to Fehling's test.

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Benedict's test

A Dictionary of Nursing | 2008 | Copyright

Benedict's test (ben-i-dikts) n. a test for the presence of sugar in urine or other liquids, using a solution of sodium or potassium citrate, sodium carbonate, and copper sulphate (Benedict's solution). [ S. R. Benedict (1884–1936), US chemist]

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Benedict's test

A Dictionary of Plant Sciences | 1998 | | Copyright

Benedict's test A procedure used to detect the presence of a reducing sugar in solution. It depends upon the fact that an alkaline solution of copper (II) sulphate is reduced to insoluble copper (I) oxide by reducing sugars, to give a red precipitate.

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MICHAEL ALLABY. "Benedict's test." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "Benedict's test." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O7-Benedictstest.html

MICHAEL ALLABY. "Benedict's test." A Dictionary of Plant Sciences. 1998. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-Benedictstest.html

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sulphate

A Dictionary of Food and Nutrition | 2005 | | Copyright

sulphate (sulfate) The mineral sulphur occurs in foods and in the body in two main forms: as sulphates (salts and esters of sulphuric acid, H₂SO₄); and in the sulphur amino acids methionine and cysteine.

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DAVID A. BENDER. "sulphate." A Dictionary of Food and Nutrition. 2005. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>.

DAVID A. BENDER. "sulphate." A Dictionary of Food and Nutrition. 2005. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O39-sulphate.html

DAVID A. BENDER. "sulphate." A Dictionary of Food and Nutrition. 2005. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O39-sulphate.html

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sulphate

World Encyclopedia | 2005 | Copyright

sulphate Salt of sulphuric acid (H₂SO₄). Common sulphates include copper(II) sulphate (CuSO₄) and iron(II) sulphate (FeSO₄).

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"sulphate." World Encyclopedia. 2005. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O142-sulphate.html

"sulphate." World Encyclopedia. 2005. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-sulphate.html

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sulphate

The Columbia Encyclopedia, 6th ed. | 2011 | Copyright

sulphate see sulfate .

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"sulphate." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>.

"sulphate." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1E1-X-sulphate.html

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