abstract:The biuret test is a chemical test used for detecting the presence of peptide bonds. In the presence of peptides, a copper(II) ion forms violet-colored coordination complexes in an alkaline solution.
In order to ensure the efficacyofanimalpolypeptide on clinic, the purifiedanimal polypeptide was analyzed bypolyacrylamidegelelectrophoresis, and its content was determined by biurettest.