Estimation of alpha-amino nitrogen in plasma and urine by the colorimetric ninhydrin reaction

A MODIFIED NINHYDRIN REAGENT FOR THE PHOTOMETRIC DETERMINATION OF AMINO ACIDS AND RELATED COMPOUNDS

1954 • 3,024 citations

A modified ninhydrin colorimetric analysis for amino acids

1957 • 2,207 citations

Practical clinical biochemistry.

1963 • 345 citations

DETERMINATION OF URINARY AMINO NITROGEN BY THE COPPER METHOD

1944 • 85 citations

THE COLORIMETRIC ESTIMATION OF ALPHA-AMINO NITROGEN IN TISSUE FLUIDS

1959 • 67 citations

QUANTITATIVE CHROMATOGRAPHIC METHODS: PART 5. AN IMPROVED NINHYDRIN–HYDRINDANTIN REAGENT

1961 • 65 citations

COMPARISON OF GASOMETRIC, COLORIMETRIC, AND TITRIMETRIC DETERMINATIONS OF AMINO NITROGEN IN BLOOD AND URINE

1933 • 48 citations