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Anwendungsbeispiele Englisch
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- Hawkinsin is ninhydrin positive (a common test to detect amino acids and proteins with a free -NH2 group).
- Lawsone shows promise as a reagent for fingerprint detection because of its photoluminescence maximized at 640 nm, which is high enough that it avoids background interference common for ninhydrin.
- At the bottom end of the separation tube, the effluent is mixed with ninhydrin, a chemical that changes color in the presence of amines, a component part of amino acids.
- Fingerprints can be visualized with fluorescent compounds such as ninhydrin or DFO (1,8-Diazafluoren-9-one).
- Additionally, proline is the only amino acid that does not form a red-purple colour when developed by spraying with ninhydrin for uses in chromatography.
- To generate the ninhydrin chromophore (2-(1,3-dioxoindan-2-yl)iminoindane-1,3-dione), the amine must condense to give a Schiff base.
- With ninhydrin, indospicine gives a purple colour. With nitroprusside-alkaline ferricyanide reagent a yellow colour is produced, indicating it is not a guanidine derivative.
- In 1961, Abelson and Hoering developed a technique for removing the carboxylic acid of amino acids using the ninhydrin reaction.
- To further enhance the ability of ninhydrin, a solution of 1,2-indandione and zinc chloride (IND-Zn) can be used prior to ninhydrin.
- Treatment with ninhydrin shows a purple colour.
- Hydrindantin is an organic chemical thought to be involved with the ninhydrin test for amines.
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Enthält Übersetzungen von der TU Chemnitz sowie aus Mr Honey's Business Dictionary (nur Englisch/Deutsch).
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