title: Comparative amino acid color constants from hydrindantin-ninhydrin reagents produced with Ni-Pt and SnCl2 reducing agents.
mesh_terms: D000596:Amino Acids / Q000032:analysis*; D001322:Autoanalysis; D002021:Buffers; D002712:Chlorides; D003116:Color; D007192:Indenes; D007202:Indicators and Reagents / Q000138:chemical synthesis; D007659:Ketones; D008722:Methods; D009532:Nickel; D010084:Oxidation-Reduction; D010984:Platinum; D014001:Tin
chemical_list: D000596:Amino Acids; D002021:Buffers; D002712:Chlorides; D007192:Indenes; D007202:Indicators and Reagents; D007659:Ketones; D010984:Platinum; D014001:Tin; D009532:Nickel