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  • 1 IPEN-CNEN/SP Radiochemistry Division Instituto de Pesquisas Energéticas e Nucleares Pinheiros Caixa Postal 11049 São Paulo Brazil
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A radiochemical procedure for low level strontium-90 analysis in fish samples as well as the levels of this radionuclide in fish collected along the Brazilian coast are presented. The method developed was applied in reference samples from the IAEA in order to verify the precision and accuracy of the methodology established. Results obtained for strontium and yttrium yields were about 90%. Strontium-90 levels in fish bones varied from 3 to 12 mBq.g–1 Ca and these data are reference values to our country.