Ninhydrin is used to determine the N-terminal amino acid of a peptide.

Name: Ninhydrin is used to determine the N-terminal amino acid of a peptide.
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Quizplus · Accepted Answer

Ninhydrin is used to detect amino acids by reacting with them to produce a deep blue or purple color, but it does not specifically determine the N-terminal amino acid of a peptide. Edman degradation is the method used for determining the N-terminal amino acid.

Ninhydrin Is Used to Determine the N-Terminal Amino Acid of a Peptide