Sodium borohydride as a reducing agent for preparing ninhydrin reagent for amino acid analysis.
Sodium borohydride, in place of stannous chloride or titanous chloride, is effective in the preparation of the ninhydrin reagent for automated amino acid analysis. The reagent, coupled with dimethyl sulfoxide as a solvent, a very stable ninhydrin solution which did not form precipitates in the flow lines of the analyzer.
D000596:Amino Acids / Q000032:analysis*; D001894:Borohydrides; D004121:Dimethyl Sulfoxide; D007192:Indenes; D007202:Indicators and Reagents; D009555:Ninhydrin
D000596:Amino Acids; D001894:Borohydrides; D007192:Indenes; D007202:Indicators and Reagents; D009555:Ninhydrin; D004121:Dimethyl Sulfoxide