译 名：
Spectrophotometric Determination of Iodine in the Salts by Oxidation-Decoloration of Eriochrome Black T
作 者：
XU Mao-rong (Department of Chemical Engineering, Yancheng Institute of Technology,Yancheng 224003,China)
关键词：
eriochrome black T;iodine;oxidation-decoloration spectrophotometry
摘 要：
A new method has been developed for determination of the trace iodine by oxidation-decoloration with Eriochrome black T. The color system had a maximum absorption at 510nm in the medium of sulfuric acid. Beer’s law was obeyed in the range of 0～1.0mg/L of iodine. The relative standard deviation was in the range of 0.24%～0.28%. The recovery was 98.7%～ 103.6%. The method could be used for determination of the trace iodine in salts.
