Speciation of Iodine in Environmental Water System

Abstract

The speciation in environmental water system was selected as target in this paper. The contents of total iodine and its speciation in environmental water system including groundwater, tap water, pure water, lake water, rain water, snow water and sea water which used as comparison with surface water had been discussed. As the results revealed, the contents and speciation of iodine in different environmental water system were different from each other. The region of Changchun of China was a section of moderate iodine which judged by tap water, ground water and lake water. However and the existent speciation of iodine in these three waters were IO3for tap water, Ifor ground water with nearly both were 100 % and IO3-, Iand other perhaps organics species for lake water, rain water, snow water and sea water.

Rapid determination of 129I in large-volume water samples using rotary evaporation preconcentration and accelerator mass spectrometry measurement

“…The results show recovery of iodine in the range of 94-95% and no significant change was found (Table 1). Increase in pH and decrease in the redox potential could reduce the formation of volatile iodine [30][31][32][33]. However, in alkaline solution, the electrode potential of O2 is higher than the electrode potential of I -, so iodine redox reaction can still occur (Eq.…”