Evaluation of the determination of iodine in drinking well water by neutron activation analysis and separation by isotope exchange

The determination of total iodine in drinking and well water by neutron activation analysis and separation of¹²⁸I (T=25.0 min) by isotope exchange has been examined at the 5–15 ng.ml^–1 level. Using the Lazy Suzan of a Triga Mark-II reactor, the capacity is 5 samples per hour at a precision of 15–20% per aliquot and no apparent systematic bias.