ninhydrin


Also found in: Dictionary, Medical, Wikipedia.
Related to ninhydrin: Ninhydrin test

ninhydrin

[nin′hī·drən]
(organic chemistry)
C9H4O3·H2O White crystals or powder with a melting point of 240-245°C; soluble in water and alcohol; used for the detection and assay of peptides, amines, amino acids, and amino sugars. Also known as triketohydrindene hydrate.
References in periodicals archive ?
Using ninhydrin colorimetric method, the amino acid content in CV aqueous extract was 38.
The fixation index was determined by ninhydrin assay as per the procedure of Sung et al.
John Iwanik said ninhydrin gas being used in the lab may have escaped from the ventilation system.
England) which was spotted and dried and then placed in previously prepared and saturated solvent system (neutral and acidic solvent system) and identified the amino acids by using ninhydrin solution as a detecting agent.
This commercially available system couples ion-exchange liquid chromatography with postcolumn ninhydrin derivatization before UV detection.
These compounds react with a chemical called ninhydrin, causing it to change color.
5 per cent ninhydrin (Hi Media, Mumbai) solution in 1:1 acetone:butanol was added to the organism in hippurate solution, mixed well, and incubated at 370 [degrees]C for 10 min.
Based on ion exchange chromatography with post-column derivatization of samples using ninhydrin, these instruments accurately identify and quantify free amino acids, as well as the amino acid composition of proteins and peptides.
Kinetics of the Interaction of Cd(III)-histidine complex with ninhydrin in absence and presence of cationic and anionic micelles.
The Ninhydrin detection/ion exchange chromatography method is totally compliant with EU commission directive 98/64/EC and AOAC method for the determination of free and total amino acid content in food and feedstuffs.