title: Determination of lysine with ninhydrin-ferric reagent.
abstract: Ninhydrin-ferric reagent reacts highly and specifically with lysine at a pH value of 1.0. Ferric ion inhibits the reaction of ninhydrin with proline, ornithine, glycine, arginine, and histidine. This method can be used to determine a lysine sample of high concentration without dilution. It has a linear response range from 0.0625 to 0.5 mg lysine.HCl.
authors.affiliation: Union Chemical Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan.
authors.forename: C L
authors.initials: CL
authors.lastname: Hsieh
authors.forename: K P
authors.initials: KP
authors.lastname: Hsiung
authors.forename: J C
authors.initials: JC
authors.lastname: Su
mesh_terms: D005290:Ferric Compounds; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D008239:Lysine / Q000032:analysis*; D009555:Ninhydrin; D012680:Sensitivity and Specificity
chemical_list: D005290:Ferric Compounds; D007202:Indicators and Reagents; D009555:Ninhydrin; D008239:Lysine