Related Experiment Video
Updated: Sep 28, 2026

Synthesis and Purification of Iodoaziridines Involving Quantitative Selection of the Optimal Stationary Phase for Chromatography
Published on: May 16, 2014
Determination of inorganic anions via postcolumn reaction with iodide in ion chromatography
Yuko Kitamaki1, Ji-Ye Jin, Toyohide Takeuchi
1Department of Chemistry, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
Abstract:
Inorganic anions were determined as triiodide by postcolumn reaction with iodide under an acidic condition with help of alpha-cyclodextrin in ion chromatography. Analytes reacting with iodide to produce iodine could be determined by the present method. The analytes were indirectly detected at 287 or 355 nm. The presence of alpha-cyclodextrin caused an increase in the concentration of triiodide, leading to improvement of the sensitivity. The present system achieved good selectivity to iodate, bromate and nitrite as well as good repeatability under the optimum conditions. The determination of nitrite in river water was possible.
More Related Videos
Related Concept Videos
Ion-Exchange Chromatography
Redox Titration: Iodimetry and Iodometry
Gravimetry: Inorganic And Organic Precipitating Agents
Precipitation of Ions
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
Ion Exchange
Precipitation Titration Curve: Analysis

