Biuret Reaction Method

**Semantic type:** Laboratory Procedure

**Definition:** A chemical technique where an alkaline solution is treated with Biuret reagent containing copper (II) ions that form complexes with peptide bonds in the solution and create a color change that is proportional in intensity to the number of peptide bonds.

**Synonyms:** - BIURET REACTION METHOD - Biuret Reagent Test - Biuret Reagent Test - Piotrowski's Test - Piotrowski's Test