Talk:Biuret test
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There should be a chemical explanation to this reaction. For example the peptide link is broken etc etc. 194.204.110.244 07:47, 15 November 2006 (UTC)
The Biruet test is made by combining copper sulfate solution and sodium hydroxide solution. This mixture is then added to what you want to test for protein, eg. beef stock.
The colour of the mixture if there is presence of proteins turns violet and then blue.
