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The biuret test indicates the presence of proteins by detecting peptide linkages.

Biuret reagent is a blue solution that, when it reacts with protein, will change color to pink-purple.

The formula for biuret reagent is NH2C(O)NHC(O)NH2

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Answer:

biuret test

Explanation:

biuret test is used to determine the presence of peptida bonds in protein samples