<P> The biuret test ( Piotrowski 's 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 . Several variants on the test have been developed , such as the BCA test and the Modified Lowry test . </P>
<P> The biuret test ( Piotrowski 's 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 . Several variants on the test have been developed , such as the BCA test and the Modified Lowry test . </P>
biuret test is used to test the presence of
biuret test is used to test the presence of
peptide bonds
peptide bonds