Because ninhydrin does not react with urea, peptides, other primary amines, and ammonia, Van Slyke and coworkers report this reagent to be more specific for amino acids in biological material than the classical nitrous acid reaction (4). The utilization of ninhydrin for the quantitative ...
6. Spectrophotometric determination of tranexamic acid and mefenamic acid in tablet dosage form using derivatization technique reaction of ninhydrin with primary amino group of tranexamic acid in the presence of basic medium via oxidation, deamination followed by condensation to form... N Subramanian,T ...
The reaction of ninhydrin with primary amino groups to form the purple dye now called Ruhemann's purple (RP) was discovered by Siegfried Ruhemann in 1910. In addition, imines such as pipecolic acid and proline, the guanidino group of arginine, the amide groups of asparagine, the indole ring...
The reaction of ninhydrin with primary amino groups to form the purple dye now called Ruhemann's purple (RP) was discovered by Siegfried Ruhemann in 1910. In addition, imines such as pipecolic acid and proline, the guanidino group of arginine, the amide groups of asparagine, the indole ...
Ninhydrin hydrate Reaction Ninhydrin, also known as Ninhydrin hydrate, is a chemical used to detect potential fingerprints on porous surfaces such as paper and cardboard. This compound reacts with the amino acid (eccrine) component of the fingerprint deposit to produce a dark purple product known...
The sensitivity of the ninhydrin reaction is up to 0.01 percent. Modern automatic amino-acid analysis is carried out by combining the ion-exchange separation of amino acids and their quantitative identification using the ninhydrin reaction. The reaction is also used to detect each type of amino aci...
Proline and hydroxyproline: purification, reaction with ninhydrin, and some properties of their N-nitroso derivatives 来自 Semantic Scholar 喜欢 0 阅读量: 20 作者:PB Hamilton,PJ Ortiz 摘要: This document contains excerpts from the book Private Antitrust Litigation in the European Union and Japan ...
The techniques and instrumentation chosen depend on the type of sample or substance to be examined. The fact that most samples examined are not pure substances, but are often mixed with dirt or debris, presents a major challenge to the forensic chemist. This may also be an advantage, as ...
The amino-acids were allowed to react with ninhydrin at pH 2.5 in a micro-aeration tube. The excess of ninhydrin was destroyed by heating the solution afte... AE Sobel,A Hirschman,L Besman - 《Journal of Biological Chemistry》 被引量: 61发表: 1945年 A TERMINAL AMINO ACID RESIDUE OF LYSO...
A new reaction and preliminary colorimetric test of distinctive specificity has been developed by using dl-alanine and H2O2 as reagents for the detection of ascorbic acid. It is probable that the colour develops with dehydroascorbic acid in a manner similar to the ninhydrine or murexide tests. Wh...