Title: Study on the Spectrophotometric Determination of Iodine by Oxidation Decoloration of Methyl Orange
Abstract: In the medium of H_2SO_4 and catalyzed by potassium bromide,iodate can oxidize and decolorize methyl orange very well.The optimum reaction conditions for the spectrophotometric determination of a trace amount of iodine were found.The maxium absorbance is at 508 nm,and the linear range is 0~50 μg/(50 mL).The apparent molar absorptivity is 3.13×10~4 L/(mol·cm).The method has been used in the determination of iodine in foods with satisfactory results.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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