Description

• Ninhydrin reagent is mostly used for the detection of amino acids
• It basically gives a characteristic purple color on reaction with a-amino acids and other amino compounds, provided the pH of the reaction is 5.0 or higher
• At an acid pH of 0.3, the reaction of ninhydrin with ornithinine and proline results in a red color product
• Ninhydrin reagent can stay stable at room temperature in the absence of nitrogen atmosphere for upto 1 month in the ethylene glycol-sodium acetate solvent system.