1. A colorimetric method for the estimation of amino acid alpha nitrogen.;Harding;J. Biol. Chem.,1915
2. A modified ninhydrin reagent for the photometric determination of amino acids and related compounds.;Moore;J. Biol. Chem.,1954
3. Titrimetric determination of carbon dioxide liberated in the ninhydrin reaction with amino acids.;Smith;Analyst,1951
4. The gasometric determination of free amino acids in blood filtrates by the ninhydrin-carbon dioxide method.;Hamilton;J. Biol. Chem.,1943
5. The gasometric determination of amino acids in urine by the ninhydrin-carbon dioxide method.;Van Slyke;J. Biol. Chem.,1942