Ninhydrin Test - Reaction, Principle, Procedure | 水果好營養
Forammonia,primary/secondaryamines,andaminoacids,deeppurplecolourisobtained.·Forhydroxyprolineandproline,ayellowcolourisobtained.·For ...
What is the Ninhydrin Test?The ninhydrin test is a chemical test which is used to check whether a given analyte contains amines or α-amino acids. In this test, ninhydrin (a chemical compound with the formula C9H6O4; IUPAC name: 2,2-dihydroxyindane-1,3-dione) is added to a test solution of the analyte. The development of a deep blue colour indicates the presence of ammonia[1], primary/secondary amines, or amino acids in the analyte.
Table of ContentsThe chemical reaction that generally occurs in a positive ninhydrin test is illustrated below.
The amino group of the analyte forms a compound similar to diketohydrin. This compound has a deep blue colour, often referred to as Ruhemann’s purple.
Ninhydrin Test PrincipleThe amino group belonging to a free amino acid undergoes a chemical reaction with ninhydrin, which behaves as an oxidizi...
Ninhydrin | 水果好營養
Ninhydrin Test - Reaction, Principle, Procedure | 水果好營養
Ninhydrin Test | 水果好營養
Ninhydrin Test Principle, Procedure | 水果好營養
Ninhydrin Test – Explanation, Reaction | 水果好營養
Ninhydrin Test – Explanation, Reaction | 水果好營養
Ninhydrin Test- Definition, Principle, Procedure | 水果好營養
Ninhydrin Test: Definition, Principle | 水果好營養
Ninhydrin test: Principle, Reaction | 水果好營養
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