title: Application of differential pulse polarography to the assay of vitamins.
mesh_terms: D001205:Ascorbic Acid / Q000032:analysis; D008722:Methods; D009536:Niacinamide / Q000032:analysis; D009539:Nicotinic Acids / Q000032:analysis; D011048:Polarography / Q000379:methods; D012256:Riboflavin / Q000032:analysis; D014812:Vitamin K / Q000032:analysis; D010837:Vitamin K 1 / Q000032:analysis; D014815:Vitamins / Q000032:analysis*
chemical_list: D009539:Nicotinic Acids; D014815:Vitamins; D014812:Vitamin K; D009536:Niacinamide; D010837:Vitamin K 1; D001205:Ascorbic Acid; D012256:Riboflavin