Radiochemical procedure for the determination of plutonium isotopes in powdered milk |
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| Authors: | M H T Taddei N C Silva |
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| Institution: | 40801. Comiss?o Nacional de Energia Nuclear, Laboratório de Po?os de Caldas - CNEN/COLAB, Caixa Postal 913, 37701-970, Po?os de Caldas MG, Brazil
40802. Comiss?o Nacional de Energia Nuclear, Laboratório de Po?os de Caldas - CNEN/COLAB, Caixa Postal 913, 37701-970, Po?os de Caldas MG, Brazil
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| Abstract: | Summary A radiochemical procedure for the determination of alpha-emitting isotopes of plutonium in powdered milk is proposed. The
procedure involves sample dissolution (by HNO3 and HClO4), separation by ionic-exchange resin, electrodeposition and alpha-spectroscopy. In order to determine the chemical recovery,
242Pu was employed as a tracer. A reference material (Marine Sediment IAEA 135) was analyzed to validate such procedure, and
to show its reliability. Afterwards, some powdered milk, produced for international trade, was analyzed and chemical recovery
was found to be around 95%. |
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