A simple method for quantifying iodate and iodide fractions in solution using Ag+-impregnated activated carbon

: Suorsa Valtteri; Otaki Miho; Zhang Wenzhong; Virkanen Juhani; Koivula Risto

Publisher: Springer Science and Business Media LLC

: 2020

: Journal of Radioanalytical and Nuclear Chemistry

: 324

: 1

: 135-142

: 142

: 0236-5731

: 1588-2780

DOI: https://doi.org/10.1007/s10967-020-07061-4

: https://doi.org/10.1007/s10967-020-07061-4

The speciation of iodine in environment must be known in order to properly assess its geological fate and to study potential remediation materials for the decontamination of water containing radioactive iodine. In this study, the utilization of silver-impregnated granular activated carbon for separation between two iodine species, iodate and iodide, from each other was studied in different solution matrices with batch and column experiments. A high separation of the iodine species was achieved in the high concentrations of interfering ions, e.g. chloride, and in both mu M and trace iodine concentrations. The method is suitable for both radioactive and non-radioactive iodine.