Williams, Stoichiometry of Formation of Ruhemann's Purple in the
Ninhydrin Reaction, Bioorg.
The supernatant of each sample was used to measure the protein and AAs concentrations by performing the Lowry method and
ninhydrin reaction, respectively [37].
Amino acid in sweat can be detected using
ninhydrin reaction. Ninhydrin (2,2-dihydroxyindane-1,3-dione) is a chemical used to detect ammonia or primary and secondary amines.
Proline content was estimated using
ninhydrin reaction (Bates et al.
As a result, it was confirmed that much protein was included in carbonate warm water by a
ninhydrin reaction.
The A spot was positive for both Millon's and the
Ninhydrin reaction. The C spot was positive for both Millon's and the phosphomolibdic acid reaction.
"When you get a positive result with a
ninhydrin reaction ...
The concentration of free amino groups in TCA soluble protein was determined with the
ninhydrin reaction by spectrophotometer (Sarin et al., 1981).
Initially, tHcy was measured with amino acid analyzers, using the
ninhydrin reaction as the method of detection.
Experiments with and without leaf tissue confirmed that the interference was nonenzymatic and that [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] interfered with the
ninhydrin reaction. The interference was highly dependent on the ratio of the nitrate/proline concentration.