| BRM | biological response modifier; biuret reactive material |
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| biuret | <chemistry> A white, crystalline, nitrogenous substance, C2O2N3H5, formed by heating urea. It is intermediate between urea and cyanuric acid. Origin: Pref. Bi- + urea. Source: Websters Dictionary (01 Mar 1998) |
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| biuret reaction | A reaction characterised by a violet colour upon the addition of copper sulfate to all compounds with two amide or peptide bonds linked directly or through an intermediate carbon atom. Used in the detection and estimation of proteins and peptides having more than two amino acids. (12 Dec 1998) |
| biuret reagent | An alkaline solution of copper sulfate. (05 Mar 2000) |
| biuret test | A test for the determination of serum proteins, based on the reaction of an alkaline copper reagent with substances containing two or more peptide bonds to produce a violet-blue colour. (05 Mar 2000) |
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