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biuret test |
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biuret test
[bī′yoo͡ret] Etymology: L, bis + Gk, ouron, urine a method for detecting proteins in serum. In alkaline solution, copper sulfate ions react with the peptide bonds of proteins to produce a pink to purple color, called the biuret reaction. The amount of serum protein in a sample solution is estimated by comparing its color with that of a standard solution whose protein concentration is known. biuret [bi´u-ret] a urea derivative; its presence is detected after addition of sodium hydroxide and copper sulfate solutions by a pinkish-violet color (protein test) or a pink and finally a bluish color (urea test). biuret reaction the reaction in biuret tests. biuret test either of the tests done with biuret. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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