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  • 1 ECN Netherlands Energy Research Foundation Research Centre Petten (NH) (The Netherlands)
  • 2 State University of Utrecht (The Netherlands)
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The determination of iodate in rain-water by neutron activation analysis is described. Iodate is separated by anion exchange. The determination limit of I is 0.02 μg·L−1 for a 20 ml sample. The influence of the sea on the composition of rain-water is demonstrated by the analysis of coastal rain-water. The results indicate that inorganic iodine (I2 and IO 3 ) is enriched in filtered coastal rain-water relative to the composition of sea-water.