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2006•Unpublished venueRequires access

Spectrophotometric Determination of Iodine in Table Salt by Oxidation-Decoloration of Butyl Rhodamine B

Ningli Tang

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Abstract

A new sensitive method has been developed for the determination of iodine by oxidation-decoloration of butyl rhodamine B.The colour system has a maximum absorption at 560nm in the medium of H_2SO_4-KBr with a molar absorptivity of 9.27×10~4L·mol~(-1)·cm~(-1).Beer's law is obeyed in the range of 0~400μg/L of iodine.The method has been applied to the determination of iodine in table salt with satisfactory results.

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What this paper is about

A new sensitive method has been developed for the determination of iodine by oxidation-decoloration of butyl rhodamine B.The colour system has a maximum absorption at 560nm in the medium of H_2SO_4-KBr with a molar absorptivity of 9.27×10~4L·mol~(-1)·cm~(-1).Beer's law is obeyed in the range of 0~400μg/L of iodine.The method has been applied to the determination of iodine in table salt with satisfactory results.

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Available abstract

A new sensitive method has been developed for the determination of iodine by oxidation-decoloration of butyl rhodamine B.The colour system has a maximum absorption at 560nm in the medium of H_2SO_4-KBr with a molar absorptivity of 9.27×10~4L·mol~(-1)·cm~(-1).Beer's law is obeyed in the range of 0~400μg/L of iodine.The method has been applied to the determination of iodine in table salt with satisfactory results.

Key concepts: Molar absorptivity, Iodine, Chemistry, Rhodamine B, Salt (chemistry), Absorption (acoustics), Rhodamine, Nuclear chemistry

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