title: Quality control for amino acid visualization reagents.
abstract: A method is described that quantitatively evaluates development conditions and reactivity of amino acid visualization reagents. Ninhydrin was the primary reagent used in this study. The method consists of spotting a serial dilution of amino acids in a numbered grid on paper. Examples of the variability of development as a result of atmospheric conditions are illustrated.
mesh_terms: D000596:Amino Acids / Q000032:analysis* / Q000592:standards; D006801:Humans; D006813:Humidity; D008722:Methods; D009555:Ninhydrin; D011786:Quality Control; D011934:Reagent Strips / Q000592:standards; D013696:Temperature
chemical_list: D000596:Amino Acids; D011934:Reagent Strips; D009555:Ninhydrin