What methods can be used for the identification of amino acids?

Question

Quizplus · Accepted Answer

The most effective methods for amino acid identification are amino acid analyzer using cation-exchange resin and cation-exchange resin packed column in an HPLC instrument. Both methods are highly sensitive and provide accurate analysis of individual amino acids. Furthermore, the reaction with ninhydrin followed by IR spectroscopy can be used for the general detection of amino acids in a mixture, but it is not as accurate or specific as the first two methods. Column chromatography on normal phase silica gel is also useful in separating and purifying amino acids, but it is not suitable for identification purposes. Therefore, the best choice for amino acid identification is E, which includes the two most effective methods.

What Methods Can Be Used for the Identification of Amino