89Sr a radionuclide used for bone pain palliation — is produced in Fast Breeder Test Reactor (FBTR) via the 89Y (n, p) 89Sr reaction. The final 89Sr source is obtained after processing the irradiated Y2 O3 target using nitric acid. The final product 89Sr is injected in HCl medium whose concentration must be 0.05–0.5M. The final product which was obtained after the chemical processing in the nitric acid is converted into its chloride form. The estimation of nitrate ion in the 89Sr source is an indication of i) the efficiency of the conversion and ii) the 89Sr source is free from the nitrate ion impurity. Hence it is necessary to determine the presence of nitrate in the product. So a method was developed in the laboratory to estimate the nitrate ion concentration in presence of bulk chloride ion concentration by spectrophotometric method.
Keywords
Spectrophotometry, Nitrate ion, Chloride matrix, Diazotization
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