CHEM 403L- Expt. 2 (Post-lab)

Which of the following tests is used to detect tryptophan?

• biuret

• Sakaguchi

• ninhydrin

• Hopkins-Cole

• Xanthoproteic

Which of the following tests is used to detect aromatic amino acid?

• biuret

• Sakaguchi

• ninhydrin

• Hopkins-Cole

• Xanthoproteic

Which of the following tests is used to detect free-alpha amino group?

• biuret

• Sakaguchi

• ninhydrin

• Hopkins-Cole

• Xanthoproteic

Which of the following tests is undergoes

condensation reaction using copper (II) sulfate?

• biuret

• Sakaguchi

• ninhydrin

• Hopkins-Cole

• Xanthoproteic

What is the positive response for Sakaguchi test?

• purple solution

• purple interphase

• yellow solution

• red solution