Further differential-pulse polarographic and visible spectrophotometric studies of the degradation of permitted synthetic food colouring matters with and without the addition of ascorbic acid: degradation in the dark and in the light without the stabilising action of EDTA.
D001205:Ascorbic Acid / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D003624:Darkness; D004355:Drug Stability; D004492:Edetic Acid; D005505:Food Coloring Agents / Q000032:analysis*; D008027:Light; D011048:Polarography / Q000379:methods; D013053:Spectrophotometry / Q000379:methods
D005505:Food Coloring Agents; D004492:Edetic Acid; D001205:Ascorbic Acid