Spectrophotometric determination of parathion and paraoxon using alkaline hydroxylamine solution for the liberation of 4-nitrophenol.
D000468:Alkalies; D006898:Hydroxylamines; D009596:Nitrophenols / Q000032:analysis; D010261:Paraoxon / Q000032:analysis*; D010278:Parathion / Q000032:analysis*; D013053:Spectrophotometry
D000468:Alkalies; D006898:Hydroxylamines; D009596:Nitrophenols; D010278:Parathion; D010261:Paraoxon