2011•Chinese Journal of Spectroscopy LaboratoryRequires access

Determination of Ascorbic Acid by Spectrophotometry with Potassium Ferricyanide-Fe(III)

Dang Ya

Abstract

Ascorbic acid can reduce Fe(Ⅲ) to Fe(Ⅱ),and Fe(Ⅱ) can react with potassium ferricyanide to form a soluble Prussian blue(KFeⅢ[FeⅡ(CN)6]) complex.The method for determination of ascorbic acid was established by spectrophotometry,that can be applied for the determination of content of ascorbic acid in the pharmaceuticals and the fruits.

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Key concepts: Ascorbic acid, Potassium ferricyanide, Ferricyanide, Chemistry, Spectrophotometry, Prussian blue, Potassium, Nuclear chemistry